Quasi-diatonic MOS notation: Difference between revisions
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'''Quasi-diatonic MOS notation''' is a [[JI-agnostic]] [[notation]] system for [[MOS scale | '''Quasi-diatonic MOS notation''' is a [[JI-agnostic]] [[notation]] system for [[MOS scale]]s developed by {{u|CompactStar}} and {{u|VectorGraphics}}, which is designed as a natural extension of diatonic notation, instead of special-casing it as [[diamond-mos notation]] does. Alhough this specific notation was developed by them, several existing notations have similar concepts of extending diatonic notation logic to other MOSes, [[Mike Battaglia's KISS notation|KISS notation]], the melodic notations for antidiatonic, and the A–J notation for [[Bohlen–Pierce]], the latter two of which were Vector's main inspiration. In [[diatonic]], QDMN is identical to standard notation. | ||
CompactStar considers it useful for diatonic-like scales, such as macro/microdiatonic scales, "long" diatonic scales, and [[antidiatonic]]. | CompactStar considers it useful for diatonic-like scales, such as macro/microdiatonic scales, "long" diatonic scales, and [[antidiatonic]]. | ||
There were originally two versions, the original version by CompactStar and Vector's version, but they were nearly identical so they were simply merged into one. Credit to | There were originally two versions, the original version by CompactStar and Vector's version, but they were nearly identical so they were simply merged into one. Credit to {{u|CompactStar}} for the system for choosing the default mode, and for the specification of the MOS name at the top of the sheet music. | ||
== Note names == | == Note names == | ||
The root is A (A4), fixed to 440 Hz by default. | The root is A (A4), fixed to 440 Hz by default. | ||
By default, starting from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks | By default, starting from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks CompactStar!), where the nominals repeat. So nominals in order are always A, B, C, D, E, F, G, etc. with the darkest mode being on B. For example, in 5L 3s, the darkest mode is sLsLLsLL, so the notes ABCDEFGH represent the scale LsLsLLsL on A. This is done to make it backwards-compatible with existing diatonic notation, which starts on B for its darkest mode, Locrian. | ||
However, to enable compatibility with systems such as antidiatonic melodic notation and | However, to enable compatibility with systems such as antidiatonic melodic notation and Bohlen–Pierce notation, the mode on A used for nominals can be explicitly specified. More info in the Staves section. | ||
I is skipped, as in | I is skipped, as in Bohlen–Pierce, to avoid confusion, and V is skipped as well. | ||
Note that this is incompatible with conventional Bohlen–Pierce notation itself, as it refers to BP's note "C" as A, though this can be fixed by explicitly specifying a mode. | Note that this is incompatible with conventional Bohlen–Pierce notation itself, as it refers to BP's note "C" as A, though this can be fixed by explicitly specifying a mode. | ||
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Key signatures are notated as you would expect given the principle of generalizing from diatonic. | Key signatures are notated as you would expect given the principle of generalizing from diatonic. | ||
== Tables and other resources | == Tables and other resources == | ||
=== Equave names === | === Equave names === | ||
A table of what the equave is called based on how many steps it contains. This is distinct from the Greek numbers used to name harmonics, as the term "octave" comes from Latin. The -us ending is dropped from Latin numerals (as in second and quart) except where a final silent -e is kept to indicate a long vowel (as in octave), except where said -e would lead to confusion (as with non, where it would be confused with "none", also, the English pronunciation of the Latin non- root does not include a long vowel) | A table of what the equave is called based on how many steps it contains. This is distinct from the Greek numbers used to name harmonics, as the term "octave" comes from Latin. The -us ending is dropped from Latin numerals (as in second and quart) except where a final silent -e is kept to indicate a long vowel (as in octave), except where said -e would lead to confusion (as with non, where it would be confused with "none", also, the English pronunciation of the Latin non- root does not include a long vowel) | ||
{| class="wikitable" | {| class="wikitable" | ||
|+ style="font-size: 105%;" | Equave names | |+ style="font-size: 105%;" | Equave names | ||
|- | |- | ||
! Steps (1-indexed) | ! Steps (1-indexed) | ||
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! Interval | ! Interval | ||
! Steps subtended | ! Steps subtended | ||
! Note name (from A = unison) | ! Note name (from {{nowrap|A {{=}} unison}}) | ||
! Soft tuning | ! Soft tuning | ||
|- | |- | ||
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The vowels are the five-vowel system, the pronunciation of each consonant is as follows: | The vowels are the five-vowel system, the pronunciation of each consonant is as follows: | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||