159edo/Interval names and harmonies

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159edo contains all the intervals of 53edo, however, as some of the interpretations differ due 159edo having different mappings for certain primes, those differences show up in how harmonies are constructed. It should be noted that since 159edo does a better job of representing the 2.3.11 subgroup than 24edo, some of the chords listed on the page for 24edo interval names and harmonies carry over to this page, even though the exact sets of enharmonics differ between the two systems.

Table of 159edo intervals
Step Cents 5 limit 7 limit 11 limit 13 limit 17 limit Interval Names Notes
0 0 1/1 P1 Perfect Unison D This interval...
  • Is the basic representation of a given chord's root
  • Is the basic representation of the Tonic
  • Is one of four perfect consonances in this system
1 7.5471698 225/224 243/242 196/195, 351/350 256/255 R1 Wide Prime D/ This interval...
  • Approximates the rastma, and thus...
  • Is useful for defining 11-limit subchromatic alterations in the Western-Classical-based functional harmony of this system
  • Can function as both a type of subchroma and a type of reverse diesis in this system
  • Is useful for slight dissonances that convey something less than satisfactory
  • Can only be approached in melodic lines indirectly with one or more intervening notes
  • Can add to the bandwidth of a sound
2 15.0943396 ? 121/120, 100/99 144/143 120/119 rK1 Narrow Superprime D↑\ This interval...
  • Approximates the ptolemisma and the biyatisma
  • Is useful for slight dissonances that create noticeable tension
  • Can only be approached in melodic lines indirectly with one or more intervening notes
3 22.6415094 81/80 ? ? 78/77 85/84 K1 Lesser Superprime D↑ This interval...
  • Is especially useful as a basis for defining 5-limit subchromatic alterations in the Western-Classical-based functional harmony of this system
  • Can be considered a type of reverse diesis
  • Is a dissonance to be avoided in Western-Classical-based harmony unless deliberately used for expressive purposes
  • Is useful in melody as...
  • An appoggiatura
  • An acciaccatura
  • Part of a series of quick passing tones
4 30.1886792 64/63 56/55, 55/54 ? 52/51 S1, kU1 Greater Superprime, Narrow Inframinor Second Edb<, Dt<↓ This interval...
  • Can function as both a type of parachroma and a type of diesis in this system
  • Can be considered a type of parachroma
  • Is a dissonance to be avoided in Western-Classical-based harmony unless...
  • Used for hidden subchromatic voice-leading in the middle voices
  • Used in a contrapuntal passage in which both of the notes separated by this interval in one voice work well against the notes in all other voices
  • Deliberately used for expressive purposes
  • Is useful in melody as...
  • An appoggiatura
  • An acciaccatura
  • Part of a series of quick passing tones
  • The destination for a glissando
5 37.7358491 ? 45/44 ? 51/50 um2, RkU1 Inframinor Second, Wide Superprime Edb>, Dt>↓ This interval...
  • Approximates the Undecimal Fifth-Tone
  • Approximates a complex 11-limit Paradiatonic quartertone that is the namesake of 24edo's own Inframinor Second
  • Is the closest approximation of 31edo's own Superprime found in this system, and thus...
  • Is a dissonance to be avoided in Western-Classical-based harmony unless...
  • Used for hidden voice-leading in the middle voices
  • Used for tonality-flux-based chord progressions
  • Used in a contrapuntal passage in which both of the notes separated by this interval in one voice work well against the notes in all other voices
  • Deliberately used for expressive purposes
  • Is useful in melody as...
  • A non-chord passing tone
  • The destination for a glissando
6 45.2830189 ? ? ? 40/39 192/187 kkm2, Rum2, rU1 Wide Inframinor Second, Narrow Ultraprime Eb↓↓, Dt<\ This interval...
  • It functions like an Ultraprime in that...
  • It has the potential to move directly back down to the Tonic through a parachromatic motion
  • It has the potential to move away from the Tonic towards either a Contralead or Supertonic harmony through a diatonic or paradiatonic motion
  • It cannot occur as the distance between any two notes in a single chord in Western-Classical-based polypedal harmony due to its dissonance
  • It functions like an Inframinor Second in that...
  • It can be used in Western-Classical-based harmony as part of a contrapuntal passage in which both of the notes separated by this interval in one voice work well against the notes in all other voices
  • It can be used in Western-Classical-based harmony for hidden voice-leading in the middle voices
  • Is one of the more important intervals for use in tonality-flux-based chord progressions
7 52.8301887 ? 33/32 ? 34/33 U1, rKum2 Ultraprime, Narrow Subminor Second Dt<, Edb<↑ This interval...
  • It functions as the default parachromatic quartertone in Western-Classical-based Paradiatonic functional harmony, and thus...
  • Can be used more overtly in both melodic and harmonic voice-leading in general, though doing so in Western-Classical-based music requires a proper set-up
  • Cannot occur as the distance between any two notes in a single chord in Western-Classical-based polypedal harmony due to its dissonance
  • Has the potential to move directly back down to the Tonic through a Parachromatic quartertone motion
  • Has the potential to move away from the Tonic towards either a Contralead or Supertonic harmony through a type of Diatonic or Paradiatonic semitone motion
  • Is one fifth of this system's approximation of the Septimal Subminor Third
  • Is the closest approximation of 22edo's Lesser Minor Second in this system, and thus...
  • Can be used in Superpyth-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 24edo's own Ultraprime in this system, and thus...
  • Follows similar interval arithmetic logic in relation to Pythagorean intervals, albeit with caveats, since the rastma is not tempered out
  • Is one of the more important intervals for use in tonality-flux-based chord progressions
8 60.3773585 28/27 ? ? 88/85 sm2, Kum2, uA1 Lesser Subminor Second, Wide Ultraprime, Infra-Augmented Prime Dt>, Eb↓\ This interval...
  • Is the narrowest interval that can be used in Western-Classical-based harmony and Neo-Medieval harmony as a proper leading tone
  • Compared to other options, it has a markedly more tense feel
  • Can be used as an unexpected option for a chromatic-type semitone in Western-Classical-based harmony
  • Is the closest approximation of 19edo's Augmented Prime found in this system, and thus...
  • Is capable of being used for similar modulatory moves, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is one third of this system's approximation of the Ptolemaic Major Second
  • Can be used for tonality-flux-based chord progressions
9 67.9245283 25/24 ? ? 26/25, 27/26 ? km2, RuA1, kkA1 Greater Subminor Second, Diptolemaic Augmented Prime Eb↓, Dt<↑\, D#↓↓ This interval...
  • It frequently acts as a chromatic semitone in Western-Classical-based harmony
  • It demonstrates third-tone functionality- especially in relation to this system's approximation of the Pythagorean Major Second- due to the combination of commas tempered out in this system
  • Is the closest approximation of 17edo's Minor Second found in this system, and thus...
  • Is capable of being used for similar modulatory moves, albeit with caveats, since such moves on their own don't work the exact same way in this system
10 75.4716981 ? ? ? 160/153 Rkm2, rKuA1 Wide Subminor Second, Lesser Sub-Augmented Prime Eb↓/, Dt<↑ This interval...
  • Approximates multiple complex 17-limit intervals relative to the Tonic and can be used...
  • In Western-Classical-based harmony as part of the simul cadence due to it providing a smooth option for both voice-leading and chord construction
  • As an unexpected option for a chromatic-type semitone in Western-Classical-based harmony
  • Is the closest approximation of 31edo's Subminor Second found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 16edo's Subminor Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
11 83.0188679 21/20 22/21 ? ? rm2, KuA1 Narrow Minor Second, Greater Sub-Augmented Prime Eb\, Dt>↑ This interval...
  • It serves as a type of leading tone when resolving septimal harmony constructions to classic harmony constructions
  • It serves as a type of small chromatic semitone in undecimal harmony constructions
  • Is one sixth of this system's approximation of the Perfect Fourth
12 90.5660377 256/243, 135/128 ? ? ? ? m2, kA1 Pythagorean Minor Second, Ptolemaic Augmented Prime Eb, D#↓ This interval...
  • Can be used readily in both melodic and harmonic voice-leading in general
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes dissonance, and thus requires resolution
  • It serves as a Diatonic semitone in both Western-Classical-based functional harmony and Neo-Medieval harmony in general, and thus...
  • Has the potential to move directly back down to the Tonic as a Contralead, though in non-meantone systems like this one, such a gesture using this interval has a slightly more tense feel
  • Can serve as a possible interval between the Tonic and the root of a Neapolitan chord
  • Approximates the Major Chroma or Ptolemaic Augmented Prime, and as such...
  • It serves as a chromatic semitone in the 5-limit Diatonic settings that are common to Western-Classical-based harmony, and thus...
  • It separates Pythagorean Major intervals from Ptolemaic Minor Intervals, and likewise separates Ptolemaic Major intervals from Pythagorean Minor intervals
  • Is one half of this system's approximation of the Classic Major Second as a consequence of the schisma being tempered out in this system
  • Is the closest approximation of 13edo's own Minor Second in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
13 98.1132075 ? 128/121 55/52 18/17 Rm2, RkA1 Artomean Minor Second, Artomean Augmented Prime Eb/, D#↓/ This interval...
  • Can be used as an unexpected option for a chromatic-type semitone in Western-Classical-based harmony
  • Can be used as a type of Diatonic semitone in undecimal harmony
  • Is one of two in this system that are essential in executing the frameshift cadence
  • Is the closest approximation of the 12edo Minor Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
14 105.6603774 ? ? ? 17/16 rKm2, rA1 Tendomean Minor Second, Tendomean Augmented Prime D#\, Eb↑\ This interval...
  • Can be used as an unexpected option for a Diatonic-type semitone in Western-Classical-based harmony
  • Can be used as a type of chromatic semitone in undecimal harmony
  • Is the closest approximation of 22edo's Greater Minor Second in this system, and thus...
  • Can be used in Faux-Classical-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since the biyatisma is not tempered out
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
15 113.2075472 16/15 ? ? ? ? Km2, A1 Ptolemaic Minor Second, Pythagorean Augmented Prime D#, Eb↑ This interval...
  • Is one of the staples of both melodic and harmonic voice-leading
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes crowding, and thus requires resolution
  • It readily serves as the traditional leading tone in 5-limit Western-Classical-based functional harmony and thus...
  • Has the potential to move directly back down to the Tonic as a Contralead, though in non-meantone systems like this one, such a gesture using this interval has a slightly more lax and natural feel
  • Has close affinities with the Serviant due to being located at roughly a Ptolemaic Major Third away from it
  • Can serve as a possible interval between the Tonic and the root of a Neapolitan chord
  • Approximates the Apotome or Pythagorean Augmented Prime, and thus...
  • Is generally the interval that defines the default value of sharps and flats in this system, and is thus very helpful as a reference interval
  • Is one of two in this system that are essential in executing the frameshift cadence
  • Is the closest approximation of 31edo's own Minor Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
16 120.7547170 15/14 275/256 ? ? RKm2, kn2, RA1 Wide Minor Second, Artoretromean Augmented Prime Ed<↓, Eb↑/, D#/ This interval...
  • It functions as both a type of chromatic semitone and a type of Diatonic semitone in septimal harmony
  • Is one third of this system's approximation of the Octave-Reduced Thirteenth Subharmonic
  • Is the closest approximation of 10edo's Minor Second found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
17 128.3018868 ? ? 14/13 128/119 kN2, rKA1 Lesser Supraminor Second, Tendoretromean Augmented Prime Ed>↓, D#↑\ This interval...
  • Approximates the Tridecimal Supraminor Second and a similar 11-limit interval that acts as the Supraminor counterpart to the Undecimal Submajor Second, and thus...
  • It can be thought of as something along the lines of a "wide semitone" in voice-leading
  • It demonstrates trienthird functionality- namely in relation to this system's approximation of the Classic Major Third- due to the combination of commas tempered out in this system
  • Approximates a complex yet uprooted 17-limit interval relative to the Tonic and can be used...
  • As an unexpected option for a Diatonic-type semitone in Western-Classical-based harmony
  • Is the closest approximation of 19edo's Minor Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
18 135.8490566 27/25 ? ? 13/12 ? KKm2, rn2, KA1 Greater Supraminor Second, Diptolemaic Limma, Retroptolemaic Augmented Prime Ed<\, Eb↑↑, D#↑ This interval...
  • It frequently acts as a Diatonic semitone in Western-Classical-based harmony
  • It demonstrates two-third-tone functionality- especially in relation to this system's approximation of the Pythagorean Major Second- due to the combination of commas tempered out in this system
  • It demonstrates trienthird functionality- namely in relation to this system's approximation of the Pythagorean Major Third- due to the combination of commas tempered out in this system
  • Is found in 53edo as that system's Supraminor Second, and can thus be used to create identical-sounding melodic and harmonic gestures in this system
19 143.3962264 ? 88/81 ? ? n2, SA11 Artoneutral Second, Lesser Super-Augmented Prime Ed<, Dt#<↓ This interval...
  • It can be thought of as something along the lines of a "wide semitone" in voice-leading
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes dissonance, and thus requires resolution
  • It serves as the smaller and more dissonant of two Neutral Seconds in Western-Classical-based Paradiatonic functional harmony, and thus...
  • Has the potential to move to the Pythagorean Minor Third through a Paradiatonic "narrow whole tone" motion
  • Has the potential to move to the Lesser Subminor Second through a type of Chromatic semitone motion
  • Is one half of this system's approximation of the Neo-Gothic Minor Third
  • Is one third of this system's approximation of the Classic Diminished Fourth
  • Is the closest approximation of 17edo's Neutral Second found in this system, and thus...
  • Is capable of being used for similar modulatory moves, albeit with caveats, albeit with caveats, since such moves on their own don't work the exact same way in this system
20 150.9433962 ? 12/11 ? ? N2, RkUA1 Tendoneutral Second, Greater Super-Augmented Prime Ed>, Dt#>↓ This interval...
  • It can be thought of as something along the lines of a "narrow whole tone" in voice-leading
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes crowding, and thus requires resolution
  • It serves as the larger and more consonant of two Neutral Seconds in Western-Classical-based Paradiatonic functional harmony, and thus...
  • Has the potential to move to the Pythagorean Minor Third through a Paradiatonic "wide semitone" motion
  • Has the potential to move to the Lesser Subminor Second through a type of Chromatic semitone motion
  • Is one fifth of this system's approximation of the Just Paramajor Fifth
  • Is the closest approximation of 24edo's own Neutral Second in this system, and thus...
  • Follows similar interval arithmetic logic in relation to Pythagorean intervals, albeit with caveats, since the rastma is not tempered out
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
21 158.4905660 ? ? ? 128/117 561/512, 1024/935 kkM2, RN2, rUA1 Lesser Submajor Second, Diretroptolemaic Augmented Prime Ed>/, E↓↓, Dt#>↓/, D#↑↑ This interval...
  • Is one half of this system's approximation of the Classic Minor Third
  • Is the closest approximation of 31edo's own Middle Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is found in 53edo as that system's Submajor Second, and can thus be used to create identical-sounding melodic and harmonic gestures in this system
22 166.0377358 ? 11/10 ? ? Kn2, UA1 Greater Submajor Second, Ultra-Augmented Prime Ed<↑, Dt#<, Fb↓/ This interval...
  • Approximates the Undecimal Submajor Second and a similar 13-limit interval that acts as the Submajor counterpart to the Tridecimal Supraminor Second, and thus...
  • It can be thought of as something along the lines of a "narrow whole tone" in voice-leading
  • Approximates a complex 11-limit Parachromatic interval formed by stacking an Al-Farabi Quartertone on top of an Apotome, and thus...
  • It can be thought of as a type of sesquichroma when acting in this capacity
  • Is one third of this system's approximation of the Perfect Fourth
  • Is the closest approximation of 22edo's Lesser Major Second in this system, and thus...
  • Can be used in Faux-Classical-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
23 173.5849057 567/512 243/220 ? 425/384 rkM2, KN2 Narrow Major Second Ed>↑, E↓\, Dt#>, Fb\ This interval...
  • Is one half of the approximation of the traditional, low complexity Undecimal Neutral Third in this system
  • Is one third of the approximation of the Classic Acute Fourth in this system
  • Is the closest approximation of the 7edo Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
24 181.1320755 10/9 ? 256/231 ? ? kM2 Ptolemaic Major Second E↓, Fb This interval...
  • Can be used readily in both melodic and harmonic voice-leading in general
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes crowding, and thus requires resolution
  • Is one the intervals in this system that are essential in executing any sort of variation on Jacob Collier's "Four Magical chords" from his rendition of "In the Bleak Midwinter"
  • It readily serves as a Diatonic whole tone in Western-Classical-based functional harmony, since...
  • It has close affinities with the Serviant due to being located at roughly a Ptolemaic Minor Third away from it
  • Is one half of this system's approximation of the Octave-Reduced Thirteenth Subharmonic
  • Is one fifth of this system's approximation of the Pythagorean Major Sixth
  • Is the closest approximation of 13edo's own Major Second in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
25 188.6792458 ? ? 143/128 512/459 RkM2 Artomean Major Second E↓/, Fb/ This interval...
  • Is useful for modulating to keys that are not found on the same circle of fifths
  • Is one third of this system's approximation of the Classic Augmented Fourth
  • Is the closest approximation of 19edo's Major Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
26 196.2264151 28/25 121/108 ? ? rM2 Tendomean Major Second E\, Fb↑\ This interval...
  • Approximates the Middle Major Second
  • Is one of two intervals that serve as the closest approximation of the 12edo Major Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Major Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
27 203.7735849 9/8 ? ? ? ? M2 Pythagorean Major Second E, Fb↑ This interval...
  • Is one of the staples of both melodic and harmonic voice-leading
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes crowding, and thus requires resolution
  • It readily serves as a Diatonic whole tone in both Western-Classical-based functional harmony and Neo-Medieval harmony in general, since...
  • It functions as a Double Dominant due to being the result of stacking two Perfect Fifths and octave-reducing
  • Is the whole tone that is used as a reference interval in diatonic-and-chromatic-style interval logic in this system as it pertains to both semitones and quartertones, and thus...
  • It sees usage in Paradiatonic and Parachromatic harmonies in addition to the more obvious Diatonic-related uses
  • Is one fourth of this system's approximation of the Classic Minor Sixth as a consequence of the schisma being tempered out in this system
  • Is reachable through stacking three of this system's approximation of the Septimal Subfourth and octave-reducing
  • Is one of two intervals that serve as the closest approximation of the 12edo Major Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
28 211.3207547 ? ? 44/39 289/256 RM2 Wide Major Second E/, Fd<↓ This interval...
  • It is very likely to be treated as a type of whole tone when working in Neo-Medieval harmony
  • Is reachable through stacking two of this system's approximation of the Octave-Reduced Seventeenth Harmonic
  • Is the closest approximation of 17edo's Major Second found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
29 218.8679245 ? ? ? 17/15 rKM2 Narrow Supermajor Second E↑\, Fd>↓ This interval...
  • Can be used as an unexpected option for a diminished third in Western-Classical-based harmony
  • Approximates a complex 11-limit interval formed by stacking an Parapotome on top of a Classic Minor Second, and thus...
  • It can be thought of as a type of whole tone when acting in this capacity
  • Is one half of this system's approximation of the Septimal Supermajor Third
  • Is reachable through stacking two of this system's approximation of the Septendecimal Fifth and octave-reducing
  • Is the closest approximation of 22edo's Greater Major Second in this system, and thus...
  • Can be used in Superpyth-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
30 226.4150943 256/225 ? 154/135 ? ? KM2 Lesser Supermajor Second E↑, Fd<\, Fb↑↑, Dx This interval...
  • It readily appears in approximations of 5-limit Neapolitan scales as the interval formed from stacking two Ptolemaic Minor Seconds
  • Approximates a complex 5-limit interval formed by stacking a syntonic comma on top of a Pythagorean Major Second, and thus...
  • It can be thought of as a type of second when acting in this capacity
  • Is likely the smallest interval in this system that can be used in chords without causing crowding
  • Is the closest approximation of 16edo's Supermajor Second found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
31 233.9622642 8/7 55/48 ? ? SM2, kUM2 Greater Supermajor Second, Narrow Inframinor Third Fd<, Et<↓, E↑/ This interval...
  • Can readily occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, as per this system's version of the Dinner Party Rules[1], and it should be noted that...
  • Since three of these add up to this system's approximation of the Perfect Fifth, there are multiple ways it can be used in chords to great effect
  • This causes ambisonance, so chords that utilize it are prone to decomposition
  • It readily serves as one of the key Paradiatonic intervals in Western-Classical-based Paradiatonic functional harmony, since...
  • It functions as a Contravaricant due to its semiambitonal properties relative to the Diatonic scale
  • Is one half of this system's approximation of the Septimal Subfourth
  • Is the closest approximation of 31edo's Supermajor Second found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
32 241.5094340 ? 1024/891 ? ? um3, RkUM2 Inframinor Third, Wide Supermajor Second Fd>, Et>↓ This interval...
  • Approximates a complex 11-limit Paradiatonic interval that functions as a syntactic third that sounds more like a second, and as such...
  • It has the potential to move back down to the Supertonic through a diatonic or paradiatonic motion
  • It has the potential to move up towards a Mediant harmony through a parachromatic motion
  • Is one fourth of this system's approximation of the Octave-Reduced Seventh Harmonic
  • Is the closest approximation of 10edo's Major Second slash Minor Third found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
33 249.0566038 ? ? ? 15/13 ? kkm3, KKM2, Rum3, rUM2 Wide Inframinor Third, Narrow Ultramajor Second, Semifourth Fd>/, Et<\, F↓↓, E↑↑ This interval...
  • It can be used both in triads framed by a Perfect Fourth and in triads Framed by a Perfect Fifth
  • Is one half of a Perfect Fourth in this system
  • Is the closest approximation of 19edo's Semifourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 24edo's Semifourth, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
34 256.6037736 ? 297/256 ? ? UM2, rKum3 Ultramajor Second, Narrow Subminor Third Et<, Fd<↑ This interval...
  • Approximates a complex 11-limit Paradiatonic interval that functions as a syntactic second that sounds more like a third, and as such...
  • It has the potential to move back down to the Supertonic through a parachromatic motion
  • It has the potential to move up towards a Mediant harmony through a diatonic or paradiatonic motion
  • Is one third of this system's approximation of the Classic Augmented Fifth
  • Is reachable through stacking two of this system's approximation of the Tridecimal Supraminor Second
35 264.1509434 7/6 64/55 ? ? sm3, Kum3 Lesser Subminor Third, Wide Ultramajor Second Et>, Fd>↑, F↓\ This interval...
  • Can readily occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, as per this system's version of the Dinner Party Rules, and it should be noted that...
  • This causes ambisonance, so chords that utilize it are prone to decomposition
  • It readily serves as one of the key Paradiatonic intervals in Western-Classical-based Paradiatonic functional harmony, since...
  • It functions as a Contravaricant due to its semiambitonal properties relative to the Diatonic scale
  • It is useful in forming not only strident-sounding triads framed by the Perfect Fifth, but also other, ambisonant triads framed by the Perfect Fourth
36 271.6981132 75/64 ? ? ? ? km3 Greater Subminor Third F↓, Et>/, E#↓↓, Gbb This interval...
  • It most frequently appears in approximations of 5-limit Harmonic scales as the interval between the Ptolemaic Minor Sixth and the Ptolemaic Major Seventh
  • Approximates a complex 5-limit interval formed by subtracting a syntonic comma from a Pythagorean Minor Third, and thus...
  • It can be thought of as a type of third when acting in this capacity
  • Is the closest approximation of 22edo's Lesser Minor Third in this system, and thus...
  • Can be used in Superpyth-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Subminor Third found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
37 279.2452830 ? ? ? 20/17 Rkm3 Wide Subminor Third F↓/, Et<↑ This interval...
  • Approximates the Septendecimal Minor Third
  • Is the closest approximation of 13edo's Minor Third found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 17edo's Minor Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
38 286.7924528 ? 33/28 13/11 85/72 rm3 Narrow Minor Third F\, Et>↑ This interval...
  • Can be used in Western-Classical-based harmony and Neo-Medieval harmony very easily
  • Has additional applications in Paradiatonic harmony, particularly...
  • When it is found in what is otherwise the traditional Diatonic context of a Minor key
39 294.3396226 32/27 ? ? ? ? m3 Pythagorean Minor Third F This interval...
  • Is one of the staples of both melodic and harmonic motion in general
  • Readily occurs as the distance between two notes in a single chord in Western-Classical-based polypedal harmony
  • It differs from the Ptolemaic Minor Third in that...
  • It is very useful as an interpretation of the dissonant Minor Third from Medieval music's florid organum
  • It can be used in creating a subtle instability in certain Diatonic harmonies
  • Is one third of this system's approximation of the Classic Major Sixth as a consequence of the schisma being tempered out in this system
  • Is reachable through stacking three of this system's approximation of the Axirabian Limma
40 301.8867925 25/21 144/121 ? ? Rm3 Artomean Minor Third F/ This interval...
  • It is the closest approximation of 12edo's Minor Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is one half of this system's approximation of the Larger Septendecimal Tritone
  • Is reachable through stacking two of this system's approximation of the low-complexity JI neutral second
41 309.4339622 ? ? 512/429 153/128 rKm3 Tendomean Minor Third F↑\ This interval...
  • Is used accordingly as part of a diminished triad
  • Is reachable through stacking two of this system's approximation of the Just Paramajor Fifth and octave-reducing
  • Is the closest approximation of 31edo's Minor Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Can easily be used in modulatory maneuvers similar to those performed by Jacob Collier
42 316.9811321 6/5 ? 77/64 ? ? Km3 Ptolemaic Minor Third F↑, E# This interval...
  • Is one of the staples of both melodic and harmonic motion in general, and in particular...
  • It is a staple interval in Western-Classical-based Diatonic scales
  • Readily occurs as the distance between two notes in a single chord in Western-Classical-based polypedal harmony
  • It differs from the Pythagorean Minor Third in that...
  • It is one of four imperfect consonances in this system, rendering it extremely suitable for use in a Tonic triad in Western-Classical-based polypedal harmony
  • Is reachable through stacking three of this system's approximation of the Octave-Reduced Seventeenth Harmonic
  • Is the closest approximation of 19edo's Minor Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
43 324.5283019 135/112 ? ? 512/425 RKm3, kn3 Wide Minor Third Ft<↓, F↑/, Gdb< This interval...
  • Is the widest interval that can reasonably be used in Western-Classical-based harmony and Neo-Medieval harmony as a type of Minor Third
  • Is one half of this system's approximation of the Just Paraminor Fifth
  • Is one third of this system's approximation of the Neapolitan Augmented Sixth as a consequence of the hemimage comma being tempered out in this system
  • Is the closest approximation of 22edo's Greater Minor Third in this system, and thus...
  • Can be used in Faux-Classical-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
44 332.0754717 ? 40/33, 121/100 ? 144/119, 165/136 kN3, ud4 Lesser Supraminor Third, Infra-Diminished Fourth Ft>↓, Gdb> This interval...
  • It functions as the fourth complement to this system's approximation of the Undecimal Submajor Second
  • Is one half of this system's approximation of the Undecimal Diminished Fifth
  • Is one third of this system's approximation of the Pythagorean Minor Seventh
45 339.6226415 ? ? ? 39/32 17/14 KKm3, rn3, Rud4 Greater Supraminor Third, Diretroptolemaic Diminished Fourth Ft<\, F↑↑, Gdb<↑\, Gb↓↓ This interval...
  • Is very useful for essentially tempered chords such as tannic chords
  • Is reachable through stacking three of this system's approximation of the Classic Minor Second
  • Is the closest approximation of the 7edo Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is found in 53edo as that system's Supraminor Third, and can thus be used to create identical-sounding melodic and harmonic gestures in this system
46 347.1698113 ? 11/9 ? ? n3, rKud4 Artoneutral Third, Lesser Sub-Diminished Fourth Ft<, Gdb<↑ This interval...
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes dissonance, and thus requires resolution
  • It is a staple interval of the Western-Classical based Paradiatonic scale in this system
  • It serves as the smaller and more consonant of two Neutral Thirds in Western-Classical-based Paradiatonic functional harmony, and thus...
  • Has the potential to move to the Perfect Fourth through a Paradiatonic "narrow whole tone" motion
  • Has the potential to move to the Lesser Subminor Third through a type of Chromatic semitone motion
  • Is the closest approximation of 24edo's own Neutral Third in this system, and thus...
  • Follows similar interval arithmetic logic in relation to Pythagorean intervals, albeit with caveats, since the rastma is not tempered out
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's own Middle Third in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since the rastma is not tempered out
47 354.7169811 ? 27/22 ? ? N3, sd4, Kud4 Tendoneutral Third, Greater Sub-Diminished Fourth Ft>, Gdb>↑ This interval...
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes dissonance, and thus requires resolution
  • It serves as the larger and more dissonant of two Neutral Thirds in Western-Classical-based Paradiatonic functional harmony, and thus...
  • Has the potential to move to the Perfect Fourth through a Paradiatonic "wide semitone" motion
  • Has the potential to move to the Lesser Subminor Third through a type of Chromatic semitone motion
  • Is one half of this system's approximation of the Septendecimal Fifth, which is a a possible generator for this system's Superpyth scale
  • Is the closest approximation of 17edo's Neutral Third found in this system, and thus...
  • Is capable of being used for similar modulatory moves, albeit with caveats, albeit with caveats, since such moves on their own don't work the exact same way in this system
48 362.2641509 ? ? ? 16/13 21/17 kkM3, RN3, kd4 Lesser Submajor Third, Retroptolemaic Diminished Fourth Ft>/, F#↓↓, Gb↓ This interval
  • Is ostensibly one of the easiest 13-limit thirds to utilize in chords framed by either a Grave Fifth or an Acute Fifth
  • Is one third of this system's approximation of the Classic Major Seventh
  • Is the closest approximation of 10edo's Major Third found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is found in 53edo as that system's Submajor Third, and can thus be used to create identical-sounding melodic and harmonic gestures in this system
49 369.8113208 ? ? 26/21 68/55 Kn3, Rkd4 Greater Submajor Third, Artoretromean Diminished Fourth Ft<↑, Gb↓/ This interval...
  • Approximates the Tridecimal Submajor Third and a similar 11-limit interval that acts as the Submajor counterpart to the Undecimal Supraminor Third, and thus...
  • Serves as the fourth complement to this system's approximation of the Tridecimal Supraminor Second
  • Is one third of this system's approximation of the Pythagorean Major Seventh
  • Is the closest approximation of 13edo's Minor Third found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
50 377.3584906 56/45 1024/825 ? ? rkM3, KN3, rd4 Narrow Major Third, Tendoretromean Diminished Fourth Ft>↑, F#↓\, Gb\ This interval...
  • Is the narrowest interval that can reasonably be used in Western-Classical-based harmony and Neo-Medieval harmony as a type of Major Third
  • Is one half of this system's approximation of the Just Paramajor Fifth
  • Is the closest approximation of 16edo's Major Third found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 19edo's Major Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, since such moves on their own don't work the exact same way in this system
51 384.9056604 5/4 ? 96/77 ? ? kM3, d4 Ptolemaic Major Third, Pythagorean Diminished Fourth Gb, F#↓ This interval...
  • Is one of the staples of both melodic and harmonic motion in general, and in particular...
  • It is a staple interval in Western-Classical-based Diatonic scales
  • Readily occurs as the distance between two notes in a single chord in Western-Classical-based polypedal harmony
  • It differs from the Pythagorean Major Third in that...
  • It is one of four imperfect consonances in this system, rendering it extremely suitable for use in a Tonic triad in Western-Classical-based polypedal harmony
  • Serves as an enharmonic substitution for the Classic Major Third when building chords for purposes of voice-leading, in which case it counts as an unresolved interval
  • Is the closest approximation of 22edo's Lesser Major Third in this system, and thus...
  • Can be used in Faux-Classical-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Major Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
52 392.4528302 ? ? ? 64/51 RkM3, Rd4 Artomean Major Third, Artomean Diminished Fourth Gb/, F#↓/ This interval...
  • Approximates the Septendecimal Artomean Major Third
  • Is reachable through stacking two of this system's approximation of the Middle Major Second
  • Can easily be used in modulatory maneuvers similar to those performed by Jacob Collier
53 400 63/50 121/96 ? 34/27 rM3, rKd4 Tendomean Major Third, Tendomean Diminished Fourth F#\, Gb↑\ This interval...
  • It is useful for evoking the feel of 12edo in various ways, such as...
  • Creating the familiar augmented triads of 12edo
  • Performing modulatory maneuvers based around the aforementioned triads
  • It just so happens that stacking this interval with this system's approximation of the Quasi-Tempered Minor Third makes triads of just this sort in the 27-odd-limit
54 407.5471698 81/64 ? ? ? ? M3, Kd4 Pythagorean Major Third, Ptolemaic Diminished Fourth F#, Gb↑ This interval...
  • Is a viable option in both melodic and harmonic motion in general, and in particular...
  • It is a useful interval in Western-Classical-based Diatonic scales
  • Can easily occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony
  • It differs from the Ptolemaic Minor Third in that...
  • It is very useful as an interpretation of the dissonant Major Third from Medieval music's florid organum
  • It can be used in creating a subtle instability in certain Diatonic harmonies
  • Is one half of this system's approximation of the Classic Minor Sixth as a consequence of the schisma being tempered out in this system, which...
  • Leads to this interval being useful in forming oddly charming augmented triads
  • Moving up by seven of these with two octave-reductions is an unexpected alternative means for exploiting the frameshift comma, though this system's approximation of the Axirabian Limma remains essential to the process even in this case
55 415.0943396 ? 14/11 33/26 108/85 RM3, kUd4 Wide Major Third, Lesser Super-Diminished Fourth F#/, Gd<↓, Gb↑/ This interval...
  • Can be used in Western-Classical-based harmony and Neo-Medieval harmony very easily
  • Has additional applications in Paradiatonic harmony, particularly...
  • When it is found in what is otherwise the traditional Diatonic context of a Major key
  • Is one half of this system's approximation of the Tridecimal Supraminor Sixth, and thus...
  • Can be used to make augmented triads framed by this system's closest approximation of acoustic phi
  • Is reachable through stacking five of this system's approximation of the Septimal Minor Semitone
56 422.6415094 ? ? 143/112 51/40 rKM3, RkUd4 Narrow Supermajor Third, Greater Super-Diminished Fourth F#↑\, Gd>↓ This interval...
  • Approximates the Septendecimal Major Third
  • Is the closest approximation of 17edo's Major Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Supermajor Third found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
57 430.1886792 32/25 ? ? ? ? KM3, rUd4, KKd4 Lesser Supermajor Third, Diptolemaic Diminished Fourth F#↑, Gd<\, Gb↑↑ This interval...
  • It is easily very useful when it comes to building chords despite- or perhaps even because of- its dissonance
  • Approximates a complex 5-limit interval formed by adding a syntonic comma to a Pythagorean Major Third, and thus...
  • It can be thought of as a type of third when acting in this capacity
  • Is one half of this system's approximation of the Greater Tridecimal Neutral Sixth
58 437.7358491 9/7 165/128 ? ? SM3, kUM3, rm4, Ud4 Greater Supermajor Third, Ultra-Diminished Fourth Gd<, F#↑/ This interval...
  • Can occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony, though this causes dissonance, and thus requires resolution
  • It is useful in forming not only strident-sounding triads framed by the Perfect Fifth, but also different types of augmented and superaugmented triad
  • Is one half of this system's approximation of the Marvelous Minor Sixth as a consequence of the hemimage comma being tempered out in this system
  • Is the closest approximation of 22edo's Greater Major Third in this system, and thus...
  • Can be used in Superpyth-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
59 445.2830189 ? 128/99 ? 22/17 m4, RkUM3 Paraminor Fourth, Wide Supermajor Third Gd>, Ft#>↓ This interval...
  • Although it is not found on the Paradiatonic scale, it is nevertheless readily serves as one of the key Parachromatic intervals in Western-Classical-based Parachromatic functional harmony, since...
  • It functions as a Misoserviant due to its dissonance and its properties relative to the Diatonic scale
  • It has the potential to move back down to the Tonic harmony through a Paradiatonic motion
  • It has the potential to move up towards a Serviant harmony through a Parachromatic quatertone-type motion
  • It has the potential to move up towards an Intersubiant harmony through a Parachromatic semitone-type motion, with this move granting additional follow-up options
  • Follows after the pattern of inframinor and ultramajor intervals sounding like members of the adjacent interval classes- specifically, the paraminor fourth sounds more like a third than a fourth
  • Is the closest approximation of 19edo's Diminished Fourth found in this system, and thus...
  • Is capable of being used for similar modulatory moves, albeit with caveats, since such moves on their own don't work the exact same way in this system
60 452.8301887 ? ? ? 13/10 ? Rm4, KKM3, rUM3 Wide Paraminor Fourth, Narrow Ultramajor Third Gd>/, F#↑↑, G↓↓ This interval...
  • Approximates the Tridecimal Semisixth
  • Is the closest approximation of 24edo's Paraminor Fourth, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is very useful for essentially tempered chords such as island chords
61 460.3773585 ? 176/135 ? ? UM3, rKm4 Ultramajor Third, Narrow Grave Fourth Gd<↑, Ft#< This interval...
  • Approximates a complex 11-limit Paradiatonic interval that functions as a syntactic third that sounds more like a fourth, and as such...
  • It has the potential to move up to the Intersubiant harmony through Paradiatonic motion
  • It has the potential to move back down to a Mediant harmony through a type of Chromatic or Parachromatic semitone motion
  • Is reachable through stacking four of this system's approximation of the Neo-Gothic Major Third and octave-reducing
  • Is the closest approximation of 13edo's Minor Fourth found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
62 467.9245283 21/16 55/42, 72/55 ? 17/13 s4, Km4 Lesser Grave Fourth, Wide Ultramajor Third Gd>↑, G↓\ This Interval...
  • Is really useful for forming suspensions on account of its dissonance
  • Is one half of this system's approximation of the Septimal Supermajor Sixth
  • Is the closest approximation of 31edo's own Subfourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
63 475.4716981 320/243, 675/512 ? ? ? ? k4 Greater Grave Fourth G↓ This interval...
  • Approximates a complex 5-limit interval formed by subtracting a syntonic comma from a Perfect Fourth
  • Is one half of this system's approximation of the Tridecimal Semitwelfth
  • Is reachable through stacking nine of this system's approximation of the Al-Farabi Quartertone
64 483.0188679 ? 33/25 ? 45/34 Rk4 Wide Grave Fourth G↓/ This interval...
  • Is one half of this system's approximation of the Octave-Reduced Seventh Harmonic
  • Is the closest approximation of 10edo's Perfect Fourth found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is one of two intervals that can generate a Diatonic MOS with a more extreme hardness than that seen in Ultrapyth temperament
65 490.5660377 ? ? ? 85/64 r4 Narrow Fourth G\ This interval...
  • Is one of two intervals that can generate a Diatonic MOS with a sound and feel akin to that seen in Superpyth temperament
  • Is the closest approximation of 17edo's Perfect Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 22edo's Perfect Fourth in this system, and thus...
  • Can be used in both Superpyth-based and Faux-Classical-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
66 498.1132075 4/3 ? ? ? ? P4 Perfect Fourth G This interval...
  • Approximates the Perfect Fourth or Octave-Reduced Third Subharmonic, and as such...
  • Is one of the staples of both melodic and harmonic motion in general, and in particular...
  • It is a staple interval in Western-Classical-based Diatonic scales in this system, as...
  • It is one of two intervals that can generate this system's approximation of the Pythagorean Diatonic MOS
  • Can easily occur as the distance between two notes in a single chord in Western-Classical-based polypedal harmony
  • Is the basic representation of the Serviant, and thus...
  • It is the basic interval for framing a standard tetrachord in this system
  • Is one of four perfect consonances in this system
  • Is the closest approximation of the 12edo Perfect Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Inherits a sizable portion of its functionality from its 53edo counterpart, including...
  • A chain of 53 Perfect Fourths closing at the octave due to Mercator's comma being tempered out
  • Virtually all of its functionality in the realm of Western-Classical-based Diatonic scales and Diatonic functional harmony
  • New elements to its functionality include...
  • New approaches enabled by this system supporting temperaments such as sextilififths
  • A sizable chunk of its functionality in the realm of Western-Classical-based Paradiatonic functional harmony
67 505.6603774 75/56 162/121 ? ? R4 Wide Fourth G/ This interval...
  • Is one of two intervals that can generate a Diatonic MOS with a sound and feel akin to that seen in Flattone temperament
  • Is the closest approximation of 19edo's Perfect Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Perfect Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
68 513.2075472 ? 121/90 ? ? rK4 Narrow Acute Fourth G↑\ This interval...
  • Approximates a complex 11-limit interval, which, in this system...
  • Is one of two intervals that can generate a Diatonic MOS with a softness so extreme as to be quasi-equalized
  • Is reachable through stacking four of this system's approximation of the Tridecimal Supraminor Second
  • Is the closest approximation of the 7edo Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
69 520.7547170 27/20 ? ? 104/77 ? K4 Lesser Acute Fourth G↑ This interval...
  • Is one of two xenharmonic intervals that appear in the otherwise traditional settings of Western-Classical-based Diatonic scales
  • Specifically, it is found between the Major Third and Major Sixth in the Lydian Mode of the familiar Ptolemaic Sequence, and is ideally in the exact same position for both Ionian and Mixolydian modes, though this technically results in there being Diatonic scales of different varieties- namely the Bilawal and Myxian scale types...
  • It is useful for overtly making the VImin chord of these modes do what a traditional deceptive cadence normally does
  • Is one of two intervals that can generate an Antidiatonic MOS with a sound and feel that blends in easily with traditional Western-Classical-based Diatonic harmonies
  • Is reachable through stacking twelve of this system's approximation of the 2nd Undecimal Neutral Second and octave-reducing
  • Is very useful for essentially tempered chords such as marveltwin chords and ibnsinmic chords in the 27-odd-limit
70 528.3018868 256/189 110/81 ? ? S4, kM4 Greater Acute Fourth Gt<↓, G↑/, Adb< This interval...
  • Is reachable through stacking two of this system's approximation of the Septimal Subminor Third
  • Is reachable through stacking five of this system's approximation of the Large Septendecimal Semitone
  • Is the closest approximation of 16edo's Major Fourth found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
71 535.8490566 ? 15/11 ? ? RkM4, ud5 Wide Acute Fourth, Infra-Diminished Fifth Gt>↓, Adb> This interval...
  • Is extremely useful as an imperfect dissonance in Western-Classical-based Paradiatonic functional harmony
  • Has interesting functions in undecimal harmony in which it can act as both an acute fourth and an infra-augmented fourth
  • Approximates a complex 11-limit Parachromatic interval formed by taking both an Apotome and an Al-Farabi Quartertone away from a Perfect Fifth, and thus...
  • It can be thought of as a type of sesquiflat-fifth when acting in this capacity
  • Is one half of this system's approximation of the Tridecimal Submajor Seventh
72 543.3962264 ? ? ? 160/117 256/187 rM4, Rud5 Narrow Paramajor Fourth, Diretroptolemaic Diminished Fifth Gt<\, G↑↑, Ab↓↓ This interval...
  • Is reachable through stacking three of this system's approximation of the Classic Major Second.......
  • Is the closest approximation of 22edo's Diminished Fifth in this system, and thus...
  • Can be used in Superpyth-based melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 31edo's Superfourth found in this system, and thus...
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
73 550.9433962 ? 11/8 ? ? M4, rKud5 Paramajor Fourth, Lesser Sub-Diminished Fifth Gt<, Adb<↑ This interval...
  • Is one of the key intervals on the Paradiatonic scale, and one of the key Paradiatonic intervals in Western-Classical-based Parachromatic functional harmony, since...
  • It functions as an Intersubiant due to its ambisonance and its properties relative to the Diatonic scale
  • It has the potential to move up towards to the Dominant harmony through a Paradiatonic motion
  • It has the potential to move back down to a Serviant harmony through a Parachromatic quatertone-type motion
  • It has the potential to move up towards an Interregnant harmony through a Paradiatonic semitone-type motion, with this move granting additional follow-up options
  • Is reachable through stacking eight of this system's approximation of the Septendecimal Whole Tone and octave-reducing
  • Is the closest approximation of 13edo's Major Fourth found in this system, and thus...
  • Can be used in Warped Diatonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 24edo's own Paramajor Fourth found in this system, and thus...
  • Follows similar interval arithmetic logic in relation to Pythagorean intervals, albeit with caveats, since the rastma is not tempered out
  • Is capable of being used in certain similar melodic and harmonic gestures, albeit with caveats, since such moves on their own don't work the exact same way in this system
74 558.4905660 112/81 ? ? ? RM4, uA4, Kud5 Infra-Augmented Fourth, Greater Sub-Diminished Fifth Gt>, Adb>↑ This interval...
  • Approximates a complex 7-limit interval formed by stacking a Septimal Subminor Second on top of a Perfect Fourth, and thus...
  • It can be thought of as a type of fifth when acting in this capacity
  • Is one half of this system's approximation of the Undecimal Major Seventh
  • Is reachable through stacking two of this system's approximation of the Septendecimal Minor Third
75 566.0377358 25/18 ? ? 18/13 ? kkA4, RuA4, kd5 Diptolemaic Augmented Fourth, Retroptolemaic Diminished Fifth G#↓↓, Ab↓ This interval...
  • It frequently acts as an Augmented Fourth in Western-Classical-based harmony
  • It acts as an Augmented Fourth in Western-Classical-based Paradiatonic harmony
  • Is the closest approximation of 17edo's Diminished Fifth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
  • Is the closest approximation of 19edo's Augmented Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
76 573.5849057 ? ? ? 357/256 rKuA4, Rkd5 Lesser Sub-Augmented Fourth, Artoretromean Diminished Fifth Gt<↑, Ab↓/ This interval...
  • Approximates a complex 11-limit interval formed by stacking a Syntonic Comma on top of a Paramajor Fourth, and thus...
  • It can be thought of as a type of fourth when acting in this capacity
  • Is one half of this system's approximation of the Undecimal Infraoctave
  • Is reachable through stacking two of this system's approximation of the Neo-Gothic Minor Third
77 581.1320755 7/5 ? ? ? KuA4, rd5 Greater Sub-Augmented Fourth, Tendoretromean Diminished Fifth Gt>↑, Ab\ This interval...
  • It occurs frequently in septimal harmony, especially in harmonic seventh chords
  • Is reachable through stacking eleven of this system's approximation of the Al-Farabi Quartertone
  • Is the closest approximation of 31edo's Augmented Fourth found in this system, and thus...
  • Can be used in melodic and harmonic gestures reminiscent of those found in that system, albeit with caveats, since such moves on their own don't work the exact same way in this system
78 588.6792458 1024/729, 45/32 ? ? ? ? kA4, d5 Ptolemaic Augmented Fourth, Pythagorean Diminished Fifth Ab, G#↓ This interval...
  • Is one of only two intervals in the tritonic region that is allowed to be built directly on top of the Tonic in Western-Classical-based harmony
  • It functions as an Augmented Fourth in Western-Classical-based functional harmony by default, and is the signature interval of 5-limit Lydian Mode
  • It functions as a Diminished Fifth when acting in this capacity, though this usually only occurs due to voice-leading or the stacking of Pythagorean intervals
  • Is reachable through stacking three of this system's approximation of the Middle Major Second
79 596.2264151 ? ? ? 24/17
80 603.7735849 ? ? ? 17/12
81 611.3207547 729/512, 64/45 ? ? ? ?
82 618.8679245 10/7 ? ? ?
83 626.4150943 ? ? ? 512/357
84 633.9622642 36/25 ? ? 13/9 ?
85 641.5094340 81/56 ? ? ?
86 649.0566038 ? 16/11 ? ?
87 656.6037736 ? ? ? 117/80 187/128
88 664.1509434 ? 22/15 ? ?
89 671.6981132 189/128 81/55 ? ?
90 679.2452830 40/27 ? ? 77/52 ?
91 686.7924528 ? 180/121 ? ?
92 694.3396226 112/75 121/81 ? ?
93 701.8867925 3/2 ? ? ? ?
94 709.4339622 ? ? ? 128/85
95 716.9811321 ? 50/33 ? 68/45
96 724.5283019 243/160, 1024/675 ? ? ? ?
97 732.0754717 32/21 84/55, 55/36 ? 26/17
98 739.6226415 ? 135/88 ? ?
99 747.1698113 ? ? ? 20/13 ?
100 754.7169811 ? 99/64 ? 17/11
101 762.2641509 14/9 256/165 ? ?
102 769.8113208 25/16 ? ? ? ?
103 777.3584906 ? ? 224/143 80/51
104 784.9056604 ? 11/7 52/33 85/54
105 792.4528302 128/81 ? ? ? ?
106 800 100/63 192/121 ? 27/17
107 807.5471698 ? ? ? 51/32
108 815.0943396 8/5 ? 77/48 ? ?
109 822.6415094 45/28 825/512 ? ?
110 830.1886792 ? ? 21/13 55/34
111 837.7358491 ? ? ? 13/8 34/21
112 845.2830189 ? 44/27 ? ?
113 852.8301887 ? 18/11 ? ?
114 860.3773585 ? ? ? 64/39 28/17
115 867.9245283 ? 33/20, 200/121 ? 119/72, 272/165
116 875.4716981 224/135 ? ? 425/256
117 883.0188679 5/3 ? 128/77 ? ?
118 890.5660377 ? ? 429/256 256/153
119 898.1132075 42/25 121/72 ? ?
120 905.6603774 27/16 ? ? ? ?
121 913.2075472 ? 56/33 22/13 144/85
122 920.7547170 ? ? ? 17/10
123 928.3018868 128/75 ? ? ? ?
124 935.8490566 12/7 55/32 ? ?
125 943.3962264 ? 512/297 ? ?
126 950.9433962 ? ? ? 26/15 ?
127 958.4905660 ? 891/512 ? ?
128 966.0377358 7/4 96/55 ? ?
129 973.5849057 225/128 ? 135/77 ? ?
130 981.1320755 ? ? ? 30/17
131 988.6792458 ? ? 39/22 512/289
132 996.2264151 16/9 ? ? ? ?
133 1003.7735849 25/14 216/121 ? ?
134 1011.3207547 ? ? 256/143 459/256
135 1018.8679245 9/5 ? 231/128 ? ?
136 1026.4150943 1024/567 440/243 ? 768/425
137 1033.9622642 ? 20/11 ? ?
138 1041.5094340 ? ? ? 117/64 1024/561, 935/512
139 1049.0566038 ? 11/6 ? ?
140 1056.6037736 ? 81/44 ? ?
141 1064.1509434 50/27 ? ? 24/13 ?
142 1071.6981132 ? ? 13/7 119/64
143 1079.2452830 28/15 512/275 ? ?
144 1086.7924528 15/8 ? ? ? ?
145 1094.3396226 ? ? ? 32/17
146 1101.8867925 ? 121/64 104/55 17/9
147 1109.4339622 243/128, 256/135 ? ? ? ?
148 1116.9811321 40/21 21/11 ? ?
149 1124.5283019 ? ? ? 153/80
150 1132.0754717 48/25 ? ? 25/13, 52/27 ?
151 1139.6226415 27/14 ? ? 85/44
152 1147.1698113 ? 64/33 ? 33/17
153 1154.7169811 ? ? ? 39/20 187/96
154 1162.2641509 ? 88/45 ? 100/51
155 1169.8113208 63/32 55/28, 108/55 ? 51/26
156 1177.3584906 160/81 ? ? 77/39 168/85
157 1184.9056604 ? 240/121, 99/50 143/72 119/60
158 1192.4528302 448/225 484/243 195/98, 700/351 255/128
159 1200 2/1 P8 Perfect Octave D This interval...
  • Is the reduplication of a chord's root
  • Is the reduplication of the Tonic
  • Is one of four perfect consonances in this system

References