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! Approximate Ratios<nowiki>*</nowiki> | ! Approximate Ratios<nowiki>*</nowiki> | ||
! colspan="3" | [[Ups and Downs Notation]] | ! colspan="3" | [[Ups and Downs Notation]] | ||
! colspan="3" |[[SKULO interval names|SKULO notation]] (K or S = 1, U = 2) | ! colspan="3" | [[SKULO interval names| SKULO notation]] (K or S = 1, U = 2) | ||
! colspan="2" |[[Solfege|Solfeges]] | ! colspan="2" | [[Solfege| Solfeges]] | ||
|- | |- | ||
| 0 | | 0 | ||
Line 37: | Line 37: | ||
| P1 | | P1 | ||
| D | | D | ||
|Perfect unison | | Perfect unison | ||
|P1 | | P1 | ||
|D | | D | ||
|da | | da | ||
| do | | do | ||
|- | |- | ||
Line 49: | Line 49: | ||
| ^1 | | ^1 | ||
| ^D | | ^D | ||
|comma-wide unison, | | comma-wide unison, | ||
super unison | super unison | ||
|K1, S1 | | K1, S1 | ||
|KD, SD | | KD, SD | ||
|du | | du | ||
| di | | di | ||
|- | |- | ||
Line 62: | Line 62: | ||
| vm2 | | vm2 | ||
| vEb | | vEb | ||
|subminor 2nd, uber unison | | subminor 2nd, uber unison | ||
|sm2, U1 | | sm2, U1 | ||
|sEb, UD | | sEb, UD | ||
|fro | | fro | ||
| ro | | ro | ||
|- | |- | ||
Line 74: | Line 74: | ||
| m2 | | m2 | ||
| Eb | | Eb | ||
|minor 2nd, | | minor 2nd, | ||
classic augmented unison | classic augmented unison | ||
|m2, kkA1 | | m2, kkA1 | ||
|Eb, kkD# | | Eb, kkD# | ||
|fra | | fra | ||
| rih | | rih | ||
|- | |- | ||
Line 87: | Line 87: | ||
| ^m2 | | ^m2 | ||
| ^Eb | | ^Eb | ||
|classic minor 2nd, | | classic minor 2nd, | ||
comma-narrow aug unison | comma-narrow aug unison | ||
|Km2, kA1 | | Km2, kA1 | ||
|KEb, kD# | | KEb, kD# | ||
|fru | | fru | ||
| ra | | ra | ||
|- | |- | ||
Line 100: | Line 100: | ||
| ^^m2 | | ^^m2 | ||
| ^^Eb | | ^^Eb | ||
|lesser neutral second, augmented unison | | lesser neutral second, augmented unison | ||
|n2, A1 | | n2, A1 | ||
|UEb, D# | | UEb, D# | ||
|fri | | fri | ||
| ru ** | | ru ** | ||
|- | |- | ||
Line 112: | Line 112: | ||
| vvM2 | | vvM2 | ||
| vvE | | vvE | ||
|greater neutral second, | | greater neutral second, | ||
super aug unison | super aug unison | ||
|N2, sA1 | | N2, sA1 | ||
|uE, sD# | | uE, sD# | ||
|ri | | ri | ||
| ruh *** | | ruh *** | ||
|- | |- | ||
Line 125: | Line 125: | ||
| vM2 | | vM2 | ||
| vE | | vE | ||
|classic/comma-narrow major 2nd | | classic/comma-narrow major 2nd | ||
|kM2 | | kM2 | ||
|kE | | kE | ||
|ro | | ro | ||
| reh | | reh | ||
|- | |- | ||
Line 137: | Line 137: | ||
| M2 | | M2 | ||
| E | | E | ||
|major 2nd | | major 2nd | ||
|M2 | | M2 | ||
|E | | E | ||
|ra | | ra | ||
| re | | re | ||
|- | |- | ||
Line 149: | Line 149: | ||
| ^M2 | | ^M2 | ||
| ^E | | ^E | ||
|supermajor 2nd | | supermajor 2nd | ||
|SM2 | | SM2 | ||
|SE | | SE | ||
|ru | | ru | ||
| ri | | ri | ||
|- | |- | ||
Line 161: | Line 161: | ||
| vm3 | | vm3 | ||
| vF | | vF | ||
|subminor 3rd | | subminor 3rd | ||
|sm3 | | sm3 | ||
|sF | | sF | ||
|no | | no | ||
| ma | | ma | ||
|- | |- | ||
Line 173: | Line 173: | ||
| m3 | | m3 | ||
| F | | F | ||
|minor 3rd | | minor 3rd | ||
|m3 | | m3 | ||
|F | | F | ||
|na | | na | ||
| meh | | meh | ||
|- | |- | ||
Line 185: | Line 185: | ||
| ^m3 | | ^m3 | ||
| ^F | | ^F | ||
|classic minor 3rd | | classic minor 3rd | ||
|Km3 | | Km3 | ||
|KF | | KF | ||
|nu | | nu | ||
| me | | me | ||
|- | |- | ||
Line 197: | Line 197: | ||
| ^^m3 | | ^^m3 | ||
| ^^F | | ^^F | ||
|lesser neutral 3rd | | lesser neutral 3rd | ||
|n3 | | n3 | ||
|UF | | UF | ||
|ni | | ni | ||
| mu ** | | mu ** | ||
|- | |- | ||
Line 209: | Line 209: | ||
| vvM3 | | vvM3 | ||
| vvF# | | vvF# | ||
|greater neutral 3rd | | greater neutral 3rd | ||
|N3 | | N3 | ||
|uF# | | uF# | ||
|mi | | mi | ||
| muh *** | | muh *** | ||
|- | |- | ||
Line 221: | Line 221: | ||
| vM3 | | vM3 | ||
| vF# | | vF# | ||
|classic major 3rd | | classic major 3rd | ||
|kM3 | | kM3 | ||
|kF# | | kF# | ||
|mo | | mo | ||
| mi | | mi | ||
|- | |- | ||
Line 233: | Line 233: | ||
| M3 | | M3 | ||
| F# | | F# | ||
|major 3rd | | major 3rd | ||
|M3 | | M3 | ||
|F# | | F# | ||
|ma | | ma | ||
| maa | | maa | ||
|- | |- | ||
Line 245: | Line 245: | ||
| ^M3 | | ^M3 | ||
| ^F# | | ^F# | ||
|supermajor 3rd | | supermajor 3rd | ||
|SM3 | | SM3 | ||
|SF# | | SF# | ||
|mu | | mu | ||
| mo | | mo | ||
|- | |- | ||
Line 257: | Line 257: | ||
| v4 | | v4 | ||
| vG | | vG | ||
|sub 4th | | sub 4th | ||
|s4 | | s4 | ||
|sG | | sG | ||
|fo | | fo | ||
| fe | | fe | ||
|- | |- | ||
Line 269: | Line 269: | ||
| P4 | | P4 | ||
| G | | G | ||
|perfect 4th | | perfect 4th | ||
|P4 | | P4 | ||
|G | | G | ||
|fa | | fa | ||
| fa | | fa | ||
|- | |- | ||
Line 281: | Line 281: | ||
| ^4 | | ^4 | ||
| ^G | | ^G | ||
|comma-wide 4th | | comma-wide 4th | ||
|K4 | | K4 | ||
|KG | | KG | ||
|fu | | fu | ||
| fih | | fih | ||
|- | |- | ||
Line 293: | Line 293: | ||
| ^^4 | | ^^4 | ||
| ^^G | | ^^G | ||
|uber 4th, sub diminished 5th | | uber 4th, sub diminished 5th | ||
|U4, sd5 | | U4, sd5 | ||
|UG, sAb | | UG, sAb | ||
|fi/sho | | fi/sho | ||
| fu | | fu | ||
|- | |- | ||
Line 306: | Line 306: | ||
| vvA4, d5 | | vvA4, d5 | ||
| vvG#, Ab | | vvG#, Ab | ||
|classic augmented 4th, diminished 5th | | classic augmented 4th, diminished 5th | ||
|kkA4, d5 | | kkA4, d5 | ||
|kkG#, Ab | | kkG#, Ab | ||
|pi/sha | | pi/sha | ||
| fi | | fi | ||
|- | |- | ||
Line 318: | Line 318: | ||
| vA4, ^d5 | | vA4, ^d5 | ||
| vG#, ^Ab | | vG#, ^Ab | ||
|comma-narrow aug 4th, | | comma-narrow aug 4th, | ||
comma-wide dim 5th | comma-wide dim 5th | ||
|kA4, Kd5 | | kA4, Kd5 | ||
|kG#, KAb | | kG#, KAb | ||
|po/shu | | po/shu | ||
| seh | | seh | ||
|- | |- | ||
Line 331: | Line 331: | ||
| A4, ^^d5 | | A4, ^^d5 | ||
| G#, ^^Ab | | G#, ^^Ab | ||
|augmented 4th, | | augmented 4th, | ||
classic diminished 5th | classic diminished 5th | ||
|A4, KKd5 | | A4, KKd5 | ||
|G#, KKAb | | G#, KKAb | ||
|pa/shi | | pa/shi | ||
| se | | se | ||
|- | |- | ||
Line 344: | Line 344: | ||
| vv5 | | vv5 | ||
| vvA | | vvA | ||
|super augmented 4th, | | super augmented 4th, | ||
unter 5th | unter 5th | ||
|SA4, u5 | | SA4, u5 | ||
|SG#, uA | | SG#, uA | ||
|pu/si | | pu/si | ||
| su | | su | ||
|- | |- | ||
Line 357: | Line 357: | ||
| v5 | | v5 | ||
| vA | | vA | ||
|comma-narrow 5th | | comma-narrow 5th | ||
|k5 | | k5 | ||
|kA | | kA | ||
|so | | so | ||
| sih | | sih | ||
|- | |- | ||
Line 369: | Line 369: | ||
| P5 | | P5 | ||
| A | | A | ||
|perfect 5th | | perfect 5th | ||
|P5 | | P5 | ||
|A | | A | ||
|sa | | sa | ||
| sol | | sol | ||
|- | |- | ||
Line 381: | Line 381: | ||
| ^5 | | ^5 | ||
| ^A | | ^A | ||
|super 5th | | super 5th | ||
|S5 | | S5 | ||
|SA | | SA | ||
|su | | su | ||
| si | | si | ||
|- | |- | ||
Line 393: | Line 393: | ||
| vm6 | | vm6 | ||
| vBb | | vBb | ||
|subminor 6th | | subminor 6th | ||
|sm6 | | sm6 | ||
|sBb | | sBb | ||
|flo | | flo | ||
| lo | | lo | ||
|- | |- | ||
Line 405: | Line 405: | ||
| m6 | | m6 | ||
| Bb | | Bb | ||
|minor 6th | | minor 6th | ||
|m6 | | m6 | ||
|Bb | | Bb | ||
|fla | | fla | ||
| leh | | leh | ||
|- | |- | ||
Line 417: | Line 417: | ||
| ^m6 | | ^m6 | ||
| ^Bb | | ^Bb | ||
|classic minor 6th | | classic minor 6th | ||
|Km6 | | Km6 | ||
|KBb | | KBb | ||
|flu | | flu | ||
| le | | le | ||
|- | |- | ||
Line 429: | Line 429: | ||
| ^^m6 | | ^^m6 | ||
| ^^Bb | | ^^Bb | ||
|lesser neutral 6th | | lesser neutral 6th | ||
|n6 | | n6 | ||
|UBb | | UBb | ||
|fli | | fli | ||
| lu ** | | lu ** | ||
|- | |- | ||
Line 441: | Line 441: | ||
| vvM6 | | vvM6 | ||
| vvB | | vvB | ||
|greater neutral 6th | | greater neutral 6th | ||
|N6 | | N6 | ||
|uB | | uB | ||
|li | | li | ||
| luh *** | | luh *** | ||
|- | |- | ||
Line 453: | Line 453: | ||
| vM6 | | vM6 | ||
| vB | | vB | ||
|classic major 6th | | classic major 6th | ||
|kM6 | | kM6 | ||
|kB | | kB | ||
|lo | | lo | ||
| la | | la | ||
|- | |- | ||
Line 465: | Line 465: | ||
| M6 | | M6 | ||
| B | | B | ||
|major 6th | | major 6th | ||
|M6 | | M6 | ||
|B | | B | ||
|la | | la | ||
| laa | | laa | ||
|- | |- | ||
Line 477: | Line 477: | ||
| ^M6 | | ^M6 | ||
| ^B | | ^B | ||
|supermajor 6th | | supermajor 6th | ||
|SM6 | | SM6 | ||
|SB | | SB | ||
|lu | | lu | ||
| li | | li | ||
|- | |- | ||
Line 489: | Line 489: | ||
| vm7 | | vm7 | ||
| vC | | vC | ||
|subminor 7th | | subminor 7th | ||
|sm7 | | sm7 | ||
|sC | | sC | ||
|tho | | tho | ||
| ta | | ta | ||
|- | |- | ||
Line 501: | Line 501: | ||
| m7 | | m7 | ||
| C | | C | ||
|minor 7th | | minor 7th | ||
|m7 | | m7 | ||
|C | | C | ||
|tha | | tha | ||
| teh | | teh | ||
|- | |- | ||
Line 513: | Line 513: | ||
| ^m7 | | ^m7 | ||
| ^C | | ^C | ||
|classic/comma-wide minor 7th | | classic/comma-wide minor 7th | ||
|Km7 | | Km7 | ||
|KC | | KC | ||
|thu | | thu | ||
| te | | te | ||
|- | |- | ||
Line 525: | Line 525: | ||
| ^^m7 | | ^^m7 | ||
| ^^C | | ^^C | ||
|lesser neutral 7th, sub diminished 8ve | | lesser neutral 7th, sub diminished 8ve | ||
|n7, sd8 | | n7, sd8 | ||
|UC, sDb | | UC, sDb | ||
|thi | | thi | ||
| tu ** | | tu ** | ||
|- | |- | ||
Line 537: | Line 537: | ||
| vvM7 | | vvM7 | ||
| vvC# | | vvC# | ||
|greater neutral 7th, | | greater neutral 7th, | ||
diminished 8ve | diminished 8ve | ||
|N7, d8 | | N7, d8 | ||
|uC#, Db | | uC#, Db | ||
|ti | | ti | ||
| tuh *** | | tuh *** | ||
|- | |- | ||
Line 550: | Line 550: | ||
| vM7 | | vM7 | ||
| vC# | | vC# | ||
|classic major 7th, | | classic major 7th, | ||
comma-wide dim 8ve | comma-wide dim 8ve | ||
|kM7, Kd8 | | kM7, Kd8 | ||
|kC#, KDb | | kC#, KDb | ||
|to | | to | ||
| ti | | ti | ||
|- | |- | ||
Line 563: | Line 563: | ||
| M7 | | M7 | ||
| C# | | C# | ||
|major 7th, | | major 7th, | ||
classic diminished 8ve | classic diminished 8ve | ||
|M7, KKd8 | | M7, KKd8 | ||
|C#, KKDb | | C#, KKDb | ||
|ta | | ta | ||
| taa | | taa | ||
|- | |- | ||
Line 576: | Line 576: | ||
| ^M7 | | ^M7 | ||
| ^C# | | ^C# | ||
|supermajor 7th, unter 8ve | | supermajor 7th, unter 8ve | ||
|SM7, u8 | | SM7, u8 | ||
|SC#, uD | | SC#, uD | ||
|tu | | tu | ||
| to | | to | ||
|- | |- | ||
Line 588: | Line 588: | ||
| v8 | | v8 | ||
| vD | | vD | ||
|comma-narrow 8ve, sub 8ve | | comma-narrow 8ve, sub 8ve | ||
|k8/s8 | | k8/s8 | ||
|kD, sD | | kD, sD | ||
|do | | do | ||
| da | | da | ||
|- | |- | ||
Line 600: | Line 600: | ||
| P8 | | P8 | ||
| D | | D | ||
|perfect 8ve | | perfect 8ve | ||
|P8 | | P8 | ||
|D | | D | ||
|da | | da | ||
| do | | do | ||
|} | |} | ||
Line 746: | Line 746: | ||
== Approximation to JI == | == Approximation to JI == | ||
[[File:46ed2.svg|250px|thumb|right|alt=alt : Your browser has no SVG support.|Selected 15-limit intervals approximated in 46edo]] | [[File:46ed2.svg|250px|thumb|right|alt=alt : Your browser has no SVG support.|Selected 15-limit intervals approximated in 46edo]] | ||
=== | === Interval mappings === | ||
{{Q-odd-limit intervals|46}} | |||
{ | |||
== Regular temperament properties == | == Regular temperament properties == |
Revision as of 05:03, 24 May 2024
← 45edo | 46edo | 47edo → |
Theory
In the opinion of some, 46edo is the first equal division to deal adequately with the 13-limit, though others award that distinction to 41edo. In fact, while 41 is a zeta peak and zeta integral edo but not a zeta gap edo, 46 is zeta gap but not zeta peak or zeta integral. (Their sum, 87edo, does better than both in the 13-limit at the expense of a high note count.) Like 41, 46 is distinctly consistent in the 9-odd-limit, and it is consistent to the 13-odd-limit or the no-15 no-19 23-odd-limit. 46edo's fifth is slightly sharp of just, which some people (e.g. Margo Schulter) prefer, sometimes strongly, over both the just fifth and fifths of temperaments with flat fifths, such as meantone. Many say that sharp fifths give a characteristic bright sound to 5-limit triads, and consider the sound of meantone triads to be more mellow in comparison.
Rank-2 temperaments it supports include sensi, valentine, shrutar, rodan, leapday and unidec. The 11-odd-limit minimax tuning for valentine, (11/7)1/10, is only 0.01 cents flat of 3\46 octaves.
Shrutar22 as srutis describes a possible use of 46edo for Indian music.
Prime harmonics
Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +0.0 | +2.4 | +5.0 | -3.6 | -3.5 | -5.7 | -0.6 | -10.6 | -2.2 | -12.2 | +2.8 |
Relative (%) | +0.0 | +9.2 | +19.1 | -13.8 | -13.4 | -22.0 | -2.3 | -40.5 | -8.4 | -46.7 | +10.7 | |
Steps (reduced) |
46 (0) |
73 (27) |
107 (15) |
129 (37) |
159 (21) |
170 (32) |
188 (4) |
195 (11) |
208 (24) |
223 (39) |
228 (44) |
Subsets and supersets
46edo can be treated as two circles of 23edo separated by an interval of 26.087 cents.
Intervals
# | Cents | Approximate Ratios* | Ups and Downs Notation | SKULO notation (K or S = 1, U = 2) | Solfeges | |||||
---|---|---|---|---|---|---|---|---|---|---|
0 | 0.000 | 1/1 | perfect unison | P1 | D | Perfect unison | P1 | D | da | do |
1 | 26.087 | 81/80, 64/63, 49/48 | up unison | ^1 | ^D | comma-wide unison,
super unison |
K1, S1 | KD, SD | du | di |
2 | 52.174 | 28/27, 36/35, 33/32 | downminor 2nd | vm2 | vEb | subminor 2nd, uber unison | sm2, U1 | sEb, UD | fro | ro |
3 | 78.261 | 25/24, 21/20, 22/21, 24/23, 23/22 | minor 2nd | m2 | Eb | minor 2nd,
classic augmented unison |
m2, kkA1 | Eb, kkD# | fra | rih |
4 | 104.348 | 16/15, 17/16, 18/17 | upminor 2nd | ^m2 | ^Eb | classic minor 2nd,
comma-narrow aug unison |
Km2, kA1 | KEb, kD# | fru | ra |
5 | 130.435 | 13/12, 14/13, 15/14 | dupminor 2nd | ^^m2 | ^^Eb | lesser neutral second, augmented unison | n2, A1 | UEb, D# | fri | ru ** |
6 | 156.522 | 12/11, 11/10, 23/21 | dudmajor 2nd | vvM2 | vvE | greater neutral second,
super aug unison |
N2, sA1 | uE, sD# | ri | ruh *** |
7 | 182.609 | 10/9 | downmajor 2nd | vM2 | vE | classic/comma-narrow major 2nd | kM2 | kE | ro | reh |
8 | 208.696 | 9/8 | major 2nd | M2 | E | major 2nd | M2 | E | ra | re |
9 | 234.783 | 8/7, 23/20 | upmajor 2nd | ^M2 | ^E | supermajor 2nd | SM2 | SE | ru | ri |
10 | 260.870 | 7/6 | downminor 3rd | vm3 | vF | subminor 3rd | sm3 | sF | no | ma |
11 | 286.957 | 13/11, 20/17 | minor 3rd | m3 | F | minor 3rd | m3 | F | na | meh |
12 | 313.043 | 6/5 | upminor 3rd | ^m3 | ^F | classic minor 3rd | Km3 | KF | nu | me |
13 | 339.130 | 11/9, 17/14, 28/23 | dupminor 3rd | ^^m3 | ^^F | lesser neutral 3rd | n3 | UF | ni | mu ** |
14 | 365.217 | 16/13, 26/21, 21/17 | dudmajor 3rd | vvM3 | vvF# | greater neutral 3rd | N3 | uF# | mi | muh *** |
15 | 391.304 | 5/4 | downmajor 3rd | vM3 | vF# | classic major 3rd | kM3 | kF# | mo | mi |
16 | 417.391 | 14/11, 23/18 | major 3rd | M3 | F# | major 3rd | M3 | F# | ma | maa |
17 | 443.478 | 9/7, 13/10, 22/17 | upmajor 3rd | ^M3 | ^F# | supermajor 3rd | SM3 | SF# | mu | mo |
18 | 469.565 | 21/16, 17/13 | down 4th | v4 | vG | sub 4th | s4 | sG | fo | fe |
19 | 495.652 | 4/3 | perfect 4th | P4 | G | perfect 4th | P4 | G | fa | fa |
20 | 521.739 | 27/20, 23/17 | up 4th | ^4 | ^G | comma-wide 4th | K4 | KG | fu | fih |
21 | 547.826 | 11/8 | dup 4th | ^^4 | ^^G | uber 4th, sub diminished 5th | U4, sd5 | UG, sAb | fi/sho | fu |
22 | 573.913 | 7/5, 18/13, 32/23 | dudaug 4th,
dim 5th |
vvA4, d5 | vvG#, Ab | classic augmented 4th, diminished 5th | kkA4, d5 | kkG#, Ab | pi/sha | fi |
23 | 600.000 | 17/12, 24/17 | downaug 4th, updim 5th | vA4, ^d5 | vG#, ^Ab | comma-narrow aug 4th,
comma-wide dim 5th |
kA4, Kd5 | kG#, KAb | po/shu | seh |
24 | 626.087 | 10/7, 13/9, 23/16 | aug 4th, dupdim 5th | A4, ^^d5 | G#, ^^Ab | augmented 4th,
classic diminished 5th |
A4, KKd5 | G#, KKAb | pa/shi | se |
25 | 652.174 | 16/11 | dud 5th | vv5 | vvA | super augmented 4th,
unter 5th |
SA4, u5 | SG#, uA | pu/si | su |
26 | 678.261 | 40/27, 34/23 | down 5th | v5 | vA | comma-narrow 5th | k5 | kA | so | sih |
27 | 704.348 | 3/2 | perfect 5th | P5 | A | perfect 5th | P5 | A | sa | sol |
28 | 730.435 | 32/21, 26/17 | up 5th | ^5 | ^A | super 5th | S5 | SA | su | si |
29 | 756.522 | 14/9, 20/13, 17/11 | downminor 6th | vm6 | vBb | subminor 6th | sm6 | sBb | flo | lo |
30 | 782.609 | 11/7 | minor 6th | m6 | Bb | minor 6th | m6 | Bb | fla | leh |
31 | 808.696 | 8/5 | upminor 6th | ^m6 | ^Bb | classic minor 6th | Km6 | KBb | flu | le |
32 | 834.783 | 13/8, 21/13, 34/21 | dupminor 6th | ^^m6 | ^^Bb | lesser neutral 6th | n6 | UBb | fli | lu ** |
33 | 860.870 | 18/11, 28/17, 23/14 | dudmajor 6th | vvM6 | vvB | greater neutral 6th | N6 | uB | li | luh *** |
34 | 886.957 | 5/3 | downmajor 6th | vM6 | vB | classic major 6th | kM6 | kB | lo | la |
35 | 913.043 | 22/13, 17/10 | major 6th | M6 | B | major 6th | M6 | B | la | laa |
36 | 939.130 | 12/7 | upmajor 6th | ^M6 | ^B | supermajor 6th | SM6 | SB | lu | li |
37 | 965.217 | 7/4, 40/23 | downminor 7th | vm7 | vC | subminor 7th | sm7 | sC | tho | ta |
38 | 991.304 | 16/9, 23/13 | minor 7th | m7 | C | minor 7th | m7 | C | tha | teh |
39 | 1017.391 | 9/5 | upminor 7th | ^m7 | ^C | classic/comma-wide minor 7th | Km7 | KC | thu | te |
40 | 1043.478 | 11/6, 20/11, 42/23 | dupminor 7th | ^^m7 | ^^C | lesser neutral 7th, sub diminished 8ve | n7, sd8 | UC, sDb | thi | tu ** |
41 | 1069.565 | 24/13, 13/7, 28/15 | dudmajor 7th | vvM7 | vvC# | greater neutral 7th,
diminished 8ve |
N7, d8 | uC#, Db | ti | tuh *** |
42 | 1095.652 | 15/8, 32/17, 17/9 | downmajor 7th | vM7 | vC# | classic major 7th,
comma-wide dim 8ve |
kM7, Kd8 | kC#, KDb | to | ti |
43 | 1121.739 | 48/25, 40/21, 21/11, 23/12, 44/23 | major 7th | M7 | C# | major 7th,
classic diminished 8ve |
M7, KKd8 | C#, KKDb | ta | taa |
44 | 1147.826 | 27/14, 35/18, 64/33 | upmajor 7th | ^M7 | ^C# | supermajor 7th, unter 8ve | SM7, u8 | SC#, uD | tu | to |
45 | 1173.913 | 160/81, 63/32, 96/49 | down 8ve | v8 | vD | comma-narrow 8ve, sub 8ve | k8/s8 | kD, sD | do | da |
46 | 1200.000 | 2/1 | perfect 8ve | P8 | D | perfect 8ve | P8 | D | da | do |
* Based on treating 46edo as a 2.3.5.7.11.13.17.23 subgroup, without ratios of 15 (except the superparticulars). 46edo has intervals involving the 15th harmonic poorly approximated, except for 15/8 and 16/15 themselves, because, while the 3rd and 5th harmonics are sharp and their deviations from just intonation add up, 7, 11, and 13 are all tuned flat, making the difference even larger, preventing it from being consistent in the 15-odd-limit. This can be demonstrated with the discrepancy approximating 15/13 and 26/15. 9\46 is closer to 15/13 by a hair; 10\46 represents the difference between, for instance, 46edo's 15/8 and 13/8, and is more likely to appear in chords actually functioning as 15/13.
** -u as in supraminor
*** -uh as in submajor
Interval quality and chord names in color notation
Combining ups and downs notation with color notation, qualities can be loosely associated with colors:
Quality | Color | Monzo Format | Examples |
---|---|---|---|
downminor | zo | {a, b, 0, 1} | 7/6, 7/4 |
minor | fourthward wa | {a, b}, b < -1 | 32/27, 16/9 |
upminor | gu | {a, b, -1} | 6/5, 9/5 |
dupminor | ilo | {a, b, 0, 0, 1} | 11/9, 11/6 |
dudmajor | lu | {a, b, 0, 0, -1} | 12/11, 18/11 |
downmajor | yo | {a, b, 1} | 5/4, 5/3 |
major | fifthward wa | {a, b}, b > 1 | 9/8, 27/16 |
upmajor | ru | {a, b, 0, -1} | 9/7, 12/7 |
All 46edo chords can be named using ups and downs. Alterations are always enclosed in parentheses, additions never are. Ups or downs immediately after the chord root affect the 3rd, 6th, 7th, and/or the 11th (every other note of a stacked-3rds chord 6-1-3-5-7-9-11-13). Here are the zo, gu, ilo, lu, yo and ru triads:
Color of the 3rd | JI Chord | Notes as Edosteps | Notes of C Chord | Written Name | Spoken Name |
---|---|---|---|---|---|
zo | 6:7:9 | 0-10-27 | C vEb G | Cvm | C downminor |
gu | 10:12:15 | 0-12-27 | C ^Eb G | C^m | C upminor |
ilo | 18:22:27 | 0-13-27 | C ^^Eb G | C^^m | C dupminor |
lu | 22:27:33 | 0-14-27 | C vvE G | Cvv | C dudmajor or C dud |
yo | 4:5:6 | 0-15-27 | C vE G | Cv | C downmajor or C down |
ru | 14:18:21 | 0-17-27 | C ^E G | C^ | C upmajor or C up |
For a more complete list, see Ups and Downs Notation #Chords and Chord Progressions.
Notation
Sagittal
The following table shows sagittal notation accidentals in one apotome for 46edo.
Steps | 0 | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|---|
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Ups and downs notation
Using Helmholtz–Ellis accidentals, 46edo can also be notated using ups and downs notation:
Step offset | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sharp symbol | ![]() |
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Flat symbol | ![]() |
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Here, a sharp raises by five steps, and a flat lowers by five steps, so single and double arrows can be used to fill in the gap. If the arrows are taken to have their own layer of enharmonic spellings, some notes may be best spelled with three arrows.
Approximation to JI

Interval mappings
The following tables show how 15-odd-limit intervals are represented in 46edo. Prime harmonics are in bold; inconsistent intervals are in italics.
Interval and complement | Error (abs, ¢) | Error (rel, %) |
---|---|---|
1/1, 2/1 | 0.000 | 0.0 |
11/7, 14/11 | 0.117 | 0.4 |
9/5, 10/9 | 0.205 | 0.8 |
13/7, 14/13 | 2.137 | 8.2 |
13/11, 22/13 | 2.253 | 8.6 |
3/2, 4/3 | 2.393 | 9.2 |
5/3, 6/5 | 2.598 | 10.0 |
11/8, 16/11 | 3.492 | 13.4 |
7/4, 8/7 | 3.609 | 13.8 |
9/8, 16/9 | 4.786 | 18.3 |
5/4, 8/5 | 4.991 | 19.1 |
13/8, 16/13 | 5.745 | 22.0 |
11/6, 12/11 | 5.885 | 22.6 |
7/6, 12/7 | 6.001 | 23.0 |
15/8, 16/15 | 7.383 | 28.3 |
13/12, 24/13 | 8.138 | 31.2 |
11/9, 18/11 | 8.278 | 31.7 |
9/7, 14/9 | 8.394 | 32.2 |
11/10, 20/11 | 8.482 | 32.5 |
7/5, 10/7 | 8.599 | 33.0 |
13/9, 18/13 | 10.531 | 40.4 |
13/10, 20/13 | 10.736 | 41.2 |
15/11, 22/15 | 10.875 | 41.7 |
15/14, 28/15 | 10.992 | 42.1 |
15/13, 26/15 | 12.958 | 49.7 |
Interval and complement | Error (abs, ¢) | Error (rel, %) |
---|---|---|
1/1, 2/1 | 0.000 | 0.0 |
11/7, 14/11 | 0.117 | 0.4 |
9/5, 10/9 | 0.205 | 0.8 |
13/7, 14/13 | 2.137 | 8.2 |
13/11, 22/13 | 2.253 | 8.6 |
3/2, 4/3 | 2.393 | 9.2 |
5/3, 6/5 | 2.598 | 10.0 |
11/8, 16/11 | 3.492 | 13.4 |
7/4, 8/7 | 3.609 | 13.8 |
9/8, 16/9 | 4.786 | 18.3 |
5/4, 8/5 | 4.991 | 19.1 |
13/8, 16/13 | 5.745 | 22.0 |
11/6, 12/11 | 5.885 | 22.6 |
7/6, 12/7 | 6.001 | 23.0 |
15/8, 16/15 | 7.383 | 28.3 |
13/12, 24/13 | 8.138 | 31.2 |
11/9, 18/11 | 8.278 | 31.7 |
9/7, 14/9 | 8.394 | 32.2 |
11/10, 20/11 | 8.482 | 32.5 |
7/5, 10/7 | 8.599 | 33.0 |
13/9, 18/13 | 10.531 | 40.4 |
13/10, 20/13 | 10.736 | 41.2 |
15/11, 22/15 | 10.875 | 41.7 |
15/14, 28/15 | 10.992 | 42.1 |
15/13, 26/15 | 13.129 | 50.3 |
Regular temperament properties
Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
---|---|---|---|---|---|
Absolute (¢) | Relative (%) | ||||
2.3 | [73 -46⟩ | [⟨46 73]] | −0.755 | 0.75 | 2.89 |
2.3.5 | 2048/2025, 78732/78125 | [⟨46 73 107]] | −1.219 | 0.90 | 3.45 |
2.3.5.7 | 126/125, 245/243, 1029/1024 | [⟨46 73 107 129]] | −0.595 | 1.34 | 5.12 |
2.3.5.7.11 | 121/120, 126/125, 176/175, 245/243 | [⟨46 73 107 129 159]] | −0.274 | 1.36 | 5.20 |
2.3.5.7.11.13 | 91/90, 121/120, 169/168, 176/175, 245/243 | [⟨46 73 107 129 159 170]] | +0.030 | 1.41 | 5.42 |
2.3.5.7.11.13.17 | 91/90, 121/120, 154/153, 169/168, 176/175, 245/243 | [⟨46 73 107 129 159 170 188]] | +0.047 | 1.31 | 5.02 |
2.3.5.7.11.13.17.23 | 91/90, 121/120, 154/153, 169/168, 176/175, 208/207, 231/230 | [⟨46 73 107 129 159 170 188 208]] | +0.101 | 1.23 | 4.72 |
Commas
This is a partial list of the commas that 46edo tempers out with its patent val, ⟨24 38 56 67 83 89].
Prime Limit |
Ratio[1] | Monzo | Cents | Color name | Name(s) |
---|---|---|---|---|---|
5 | 2048/2025 | [11 -4 -2⟩ | 19.55 | Sagugu | Diaschisma |
5 | 78732/78125 | [2 9 -7⟩ | 13.40 | Sepgu | Sensipent comma |
5 | (14 digits) | [9 -13 5⟩ | 6.15 | Saquinyo | Amity comma |
7 | 686/675 | [1 -3 -2 3⟩ | 27.99 | Trizo-agugu | Senga |
7 | 245/243 | [0 -5 1 2⟩ | 14.19 | Zozoyo | Sensamagic comma |
7 | 126/125 | [1 2 -3 1⟩ | 13.80 | Zotrigu | Starling comma |
7 | 1029/1024 | [-10 1 0 3⟩ | 8.43 | Latrizo | Gamelisma |
7 | 5120/5103 | [10 -6 1 -1⟩ | 5.76 | Saruyo | Hemifamity comma, aberschisma |
7 | (20 digits) | [31 -6 -2 -6⟩ | 2.69 | Sasa-tribiru-agugu | Pessoalisma |
11 | 121/120 | [-3 -1 -1 0 2⟩ | 14.37 | Lologu | Biyatisma |
11 | 176/175 | [4 0 -2 -1 1⟩ | 9.86 | Lorugugu | Valinorsma |
11 | 896/891 | [7 -4 0 1 -1⟩ | 9.69 | Saluzo | Pentacircle comma |
11 | 385/384 | [-7 -1 1 1 1⟩ | 4.50 | Lozoyo | Keenanisma |
11 | 441/440 | [-3 2 -1 2 -1⟩ | 3.93 | Luzozogu | Werckisma |
13 | 91/90 | [-1 -2 -1 1 0 1⟩ | 19.13 | Thozogu | Superleap |
13 | 169/168 | [-3 -1 0 -1 0 2⟩ | 10.27 | Thothoru | Buzurgisma, dhanvantarisma |
13 | 196/195 | [2 -1 -1 2 0 -1⟩ | 8.86 | Thuzozogu | Mynucuma |
13 | 507/500 | [-2 1 -3 0 0 2⟩ | 24.07 | Thothotrigu | |
17 | 256/255 | [8 -1 -1 0 0 0 -1⟩ | 6.78 | Sugu | Charisma, septendecimal kleisma |
17 | 289/288 | [-5 -2 0 0 0 0 2⟩ | 6.00 | Soso | Semitonisma |
46et is lower in relative error than any previous equal temperaments in the 17-, 19-, 23-limit, and others. The next equal temperaments doing better in the aforementioned subgroups are 72, 72, 94, respectively. 46et is even more prominent in the no-19 23-limit, and the next equal temperament doing better in this subgroup is 140.
Rank-2 temperaments
Periods per 8ve |
Generator | Cents | Temperaments | MOS Scales | L:s |
---|---|---|---|---|---|
1 | 1\46 | 26.087 | Sfourth | ||
3\46 | 78.261 | Valentine | 1L 14s (15-tone) 15L 1s (16-tone) 16L 15s (31-tone) |
4:3 ~ quasi-equal 3:1 2:1 ~ QE | |
5\46 | 130.435 | Twothirdtonic | 1L 8s (9-tone) 9L 1s (10-tone) 9L 10s (19-tone) 9L 19s (28-tone) 9L 28s (37-tone) |
6:5 ~ QE 5:1 4:1 3:1 2:1 ~ QE | |
7\46 | 182.609 | Minortone / mitonic | 1L 5s (6-tone) 6L 1s (7-tone) 7L 6s (13-tone) 13L 7s (20-tone) 13L 20s (33-tone) |
11:7 7:4 4:3 ~ QE 3:1 2:1 ~ QE | |
9\46 | 234.783 | Rodan | 1L 4s (5-tone) 1L 5s (6-tone) 5L 6s (11-tone) 5L 11s (16-tone) 5L 16s (21-tone) 5L 21s (26-tone) 5L 26s (31-tone) 5L 31s (36-tone) 5L 36s (41-tone) |
10:9 ~QE 9:1 8:1 7:1 6:1 5:1 4:1 3:1 2:1 ~ QE, Pathological | |
11\46 | 286.957 | Gamity | 4L 1s (5-tone) 4L 5s (9-tone) 4L 9s (13-tone) 4L 13s (17-tone) 4L 17s (21-tone) 21L 4s (25-tone) |
11:2 9:2 7:2 5:2 3:2 ~ QE, Golden 2:1 ~ QE | |
13\46 | 339.130 | Amity / hitchcock | 4L 3s (7-tone) 7L 4s (11-tone) 7L 11s (18-tone) 7L 18s (25-tone) 7L 25s (32-tone) 7L 32s (39-tone) |
7:6 ~ QE 6:1 5:1 4:1 3:1 2:1 ~ QE! Pathological | |
15\46 | 391.304 | Magus / amigo | 1L 2s (3-tone) 3L 1s (4-tone) 3L 4s (7-tone) 3L 7s (10-tone) 3L 10s (13-tone) 3L 13s (16-tone) 3L 16s (19-tone) 3L 19s (21-tone) 3L 21s (24-tone) 3L 24s (27-tone) 3L 27s (30-tone) 3L 30s (33-tone) 3L 33s (36-tone) 3L 36s (39-tone) 3L 39s (42-tone) |
16:15 ~ QE 15:1 14:1 13:1 12:1 11:1 10:1 9:1 8:1 7:1 6:1 5:1 4:1 3:1 ~ Pathological 2:1 ~ QE, Pathological | |
17\46 | 443.478 | Sensi | 3L 2s (5-tone) 3L 5s (8-tone) 8L 3s (11-tone) 8L 11s (19-tone) 19L 8s (27-tone) |
12:5 7:5 5:2 3:2 ~ QE, Golden 2:1 | |
19\46 | 495.652 | Leapday | 2L 3s (5-tone) 5L 2s (7-tone) 5L 7s (12-tone) 12L 5s (17-tone) 17L 12s (29-tone) |
11:8 8:3 5:3 ~ Golden 3:2 ~ QE, Golden 2:1 ~ QE | |
21\46 | 547.826 | Heinz | 2L 3s (5-tone) 2L 5s (7-tone) 2L 7s (9-tone) 2L 9s (11-tone) 11L 2s (13-tone) 11L 13s (24-tone) 11L 24s (35-tone) |
17:4 13:4 9:4 5:4 ~ QE 4:1 3:1 2:1 ~ QE | |
2 | 1\46 | 26.087 | Ketchup | ||
2\46 | 52.174 | Shrutar | 2L 2s (4-tone) 2L 4s (6-tone) 2L 6s (8-tone) 2L 8s (10-tone) 2L 10s (12-tone) 2L 12s (14-tone) 2L 14s (16-tone) 2L 16s (18-tone) 2L 18s (20-tone) 2L 20s (22-tone) 22L 2s (24-tone) |
21:2 19:2 17:2 15:2 13:2 11:2 9:2 7:2 5:2 3:2 ~ QE, Golden 2:1 ~ QE | |
3\46 | 78.261 | Semivalentine | 2L 2s (4-tone) 2L 4s (6-tone) 2L 6s (8-tone) 2L 8s (10-tone) 2L 10s (12-tone) 2L 12s (14-tone) 14L 2s (16-tone) 16L 14s (30-tone) |
20:3 17:3 14:3 11:3 8:3 5:3 ~ Golden 3:2 ~ QE, Golden 2:1 ~ QE | |
4\46 | 104.348 | Srutal / diaschismic | 2L 2s (4-tone) 2L 4s (6-tone) 2L 6s (8-tone) 2L 8s (10-tone) 10L 2s (12-tone) 12L 10s (22-tone) 12L 22s (34-tone) |
19:4 15:4 11:4 7:4 4:3 ~ QE 3:1 2:1 ~ QE | |
5\46 | 130.435 | 2L 2s (4-tone) 2L 4s (6-tone) 2L 6s (8-tone) 8L 2s (10-tone) 8L 10s (18-tone) 18L 10s (28-tone) |
18:5 13:5 8:5 ~ Golden 5:3 ~ Golden 3:2 ~ QE, Golden 2:1 ~ QE | ||
6\46 | 156.522 | Bison | 2L 2s (4-tone) 2L 4s (6-tone) 6L 2s (8-tone) 8L 6s (14-tone) 8L 14s (22-tone) 8L 22s (30-tone) 8L 30s (38-tone |
17:6 11:6 6:5 ~ QE 5:1 4:1 3:1 2:1 ~ QE, Pathological | |
7\46 | 182.609 | Unidec / hendec | 2L 2s (4-tone) 2L 4s (6-tone) 6L 2s (8-tone) 6L 8s (14-tone) 6L 14s (20-tone) 20L 6s (26-tone) |
16:7 9:7 7:2 5:2 3:2 ~ QE, Golden 2:1 ~ QE | |
8\46 | 208.696 | Abigail | 2L 2s (4-tone) 4L 2s (6-tone) 6L 2s (8-tone) 6L 8s (14-tone) 6L 14s (20-tone) 6L 20s (26-tone) 6L 26s (32-tone) 6L 32s (38-tone) 6L 38s (44-tone) |
15:8 8:7 ~ QE 8:1 7:1 6:1 5:1 4:1 3:1 ~ Pathological 2:1 ~ QE, Pathological | |
9\46 | 234.783 | Echidnic | 2L 2s (4-tone) 4L 2s (6-tone) 6L 4s (10-tone) 10L 6s (16-tone) 10L 16s (26-tone) 10L 26s (36-tone) |
14:9 9:5 5:4 ~ QE 4:1 3:1 2:1 ~ QE | |
10\46 | 260.87 | Bamity | 2L 2s (4-tone) 4L 2s (6-tone) 4L 6s (10-tone) 4L 10s (14-tone) 14L 4s (18-tone) 14L 18s (32-tone) |
13:10 10:3 7:3 4:3 ~ QE 3:1 2:1 ~ QE | |
11\46 | 286.957 | Vines | 2L 2s (4-tone) 4L 2s (6-tone) 4L 6s (10-tone) 4L 10s (14-tone) 4L 14s (18-tone) 4L 18s (22-tone) 4L 22s (26-tone) 4L 26s (30-tone) 4L 30s (34-tone) 4L 34s (38-tone) 4L 38s (42-tone) |
12:11 ~ QE 11:1 10:1 9:1 8:1 7:1 6:1 5:1 4:1 3:1 ~ Pathological 2:1 ~ QE, Pathological | |
23 | 1\46 | 26.087 | Icositritonic |
Scales
Harmonic scales
46edo represents overtones 8 through 16 (written as JI ratios 8:9:10:11:12:13:14:15:16) with degrees 0, 8, 15, 21, 27, 32, 37, 42, 46. In steps-in-between, that's 8, 7, 6, 6, 5, 5, 5, 4.
- 8\46 (208.696¢) stands in for frequency ratio 9/8 (203.910¢).
- 7\46 (182.609¢) stands in for 10/9 (182.404¢).
- 6\46 (156.522¢) stands in for 11/10 (165.004¢) and 12/11 (150.637¢).
- 5\46 (130.435¢) stands in for 13/12 (138.573¢), 14/13 (128.298¢) and 15/14 (119.443¢).
- 4\46 (104.348¢) stands in for 16/15 (111.731¢).
Harmonic | Note (starting from C) |
---|---|
1 | C |
3 | G |
5 | E ![]() |
7 | B ![]() |
9 | D |
11 | F ![]() |
13 | A ![]() |
15 | B ![]() |
Instruments
- Skip fretting system 46 2 11: A skip-fretting system for playing 46-edo on a 23-edo stringed instrument.
- Lumatone mapping for 46edo
Music
Modern renditions
- "Contrapunctus 11" from The Art of Fugue, BWV 1080 (1742–1749) – rendered by Claudi Meneghin (2024)
- Prelude in E Minor "The Great" – rendered by Claudi Meneghin (2023)
21st century
- Rats play[dead link] (2012)
- Tumbledown Stew play[dead link] (2012)
- Hypnocloudsmack 1 play[dead link] (2012)
- Hypnocloudsmack 2 play[dead link] (2012)
- Hypnocloudsmack 3 play[dead link] (2012)
- Satiesque (2014)
- Bach BWV 1029 in 46 equal Claudi Meneghin version
- Bach Contrapunctus 4 Claudi Meneghin version
- Chaconne et Fugue à 5 "Les Regrets"
- El Rossinyol
- Arietta with 5 Variations, for Organ
- Fugue in 46edo (as Sensi), for two organs (2024)
- Chromosounds play
- Music For Your Ears play – The central portion is in 27edo; the rest is in 46edo.
- ↑ Ratios longer than 10 digits are presented by placeholders with informative hints