Diamond-mos notation: Difference between revisions

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Previous edit: removed use of the term "modmos" to avoid debates over its definition. This edit: updated "Use in software" section.
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m Accidentals: Added disclaimer about our ups and downs not being the same as Kite's
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Mos accidentals are similar to diatonic accidentals, but for non-diatonic mosses. Mos accidentals are based on the specific mos used. & (read "am") raises a note by a moschroma, the difference between the large mosstep (L) and the small mosstep (s). @ (read "at") lowers a note by the same amount. e and a represent half of & and @ respectively, and are only allowed if &/@ represent an even number of edosteps.
Mos accidentals are similar to diatonic accidentals, but for non-diatonic mosses. Mos accidentals are based on the specific mos used. & (read "am") raises a note by a moschroma, the difference between the large mosstep (L) and the small mosstep (s). @ (read "at") lowers a note by the same amount. e and a represent half of & and @ respectively, and are only allowed if &/@ represent an even number of edosteps.


The third type of accidentals are ups and downs. ^ raises by one edostep and v lowers by one edostep. There are double and triple versions, ^^/vv and ^^^/vvv, which represent movements of two and three edosteps respectively. Ups and downs can be combined with the other two types to create compound accidentals, such as ^# and vv@. 
The third type of accidentals are ups and downs. ^ raises by one edostep and v lowers by one edostep. There are double and triple versions, ^^/vv and ^^^/vvv, which represent movements of two and three edosteps respectively. Ups and downs can be combined with the other two types to create compound accidentals, such as ^# and vv@. Note: The ups and downs in diamond-mos don't necessarily follow the same rules as in Kite's original [[Ups and Downs Notation|ups and downs standard]].


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 #/b accidentals is fixed, not dependent on any context. However, in a non-diatonic mos context, #/b have no theoretical significance and could potentially be confusing. We heavily discourage #/b 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 #/b accidentals is fixed, not dependent on any context. However, in a non-diatonic mos context, #/b have no theoretical significance and could potentially be confusing. We heavily discourage #/b 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.