Diamond-mos notation: Difference between revisions

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The meaning of &/@ accidentals is dependent on the specific mos being used. &/@ have no meaning on the diatonic staff, so are not allowed in that case. Ups and downs can always be used. If the edo has 5L 2s, the meaning of ♯/♭ accidentals is fixed, not dependent on any context. However, in a non-diatonic mos context, ♯/♭ have no theoretical significance and could potentially be confusing. We heavily discourage ♯/♭ in a non-diatonic mos context for that reason. However, using them could be useful in very large edos where you need all the accidental options you can get.
The meaning of &/@ accidentals is dependent on the specific mos being used. &/@ have no meaning on the diatonic staff, so are not allowed in that case. Ups and downs can always be used. If the edo has 5L 2s, the meaning of ♯/♭ accidentals is fixed, not dependent on any context. However, in a non-diatonic mos context, ♯/♭ have no theoretical significance and could potentially be confusing. We heavily discourage ♯/♭ in a non-diatonic mos context for that reason. However, using them could be useful in very large edos where you need all the accidental options you can get.


When using 5L 2s in an edo where {{sesquisharp2}}/{{sesquiflat2}} are one edostep, we encourage using t/d instead of ^/v. This is to increase consistency with existing microtonal notation, such as notation for 17edo, 24edo, and 31edo. The same rule does not apply to e/a semi-moschroma accidentals.
When using 5L 2s in an edo where {{demisharp2}}/{{demiflat2}} are one edostep, we encourage using {{demisharp2}}/{{demiflat2}} instead of ^/v. This is to increase consistency with existing microtonal notation, such as notation for 17edo, 24edo, and 31edo. The same rule does not apply to e/a semi-moschroma accidentals.


A subtle but important feature of the standard is that accidentals are separate from each other and do not stack. '''If a note has an accidental in front, that accidental fully overrides any preceding accidentals.''' For example, if a D with a ♯ is followed by a D with only an ^, the second note is D^, not D^♯.
A subtle but important feature of the standard is that accidentals are separate from each other and do not stack. '''If a note has an accidental in front, that accidental fully overrides any preceding accidentals.''' For example, if a D with a ♯ is followed by a D with only an ^, the second note is D^, not D^♯.