31edo Chord Names
A comma (the actual punctuation mark ",") is spoken as "add", thus C,v7 is "C add-down-seven". The only exception is when a comma separates two numbers, as in C4,7 which is "C four-seven". A comma is written, and "add" is spoken, whenever not doing so would cause confusion with another chord. C^,~6 is clear without a comma if limiting oneself to 31edo. However, 53-edo and other edos have an upmid 3rd and 7th, and C^~6 would be P1 ^~3 P5 ^~6. In addition, "upmid" is a general term for slightly sharp neutral. One could play an upmid chord on a 31edo guitar by bending the mid 3rd up slightly.
Note that 4:5:6:7 = C E G vBb is named C,v7 not Cv7 because Cv7 is an alternate name for C~v7. To get a shorter name for this important chord, one could call it a harmonic7 chord, or one could borrow from color notation to call it a har7 chord, written Ch7. Names for subharmonic chords can be similarly shortened.
|chord||notes||ups and downs name||color name|
|4:5:6:7||C E G vBb||C add-down-7||C,v7||C har7||Ch7|
|7/(7:6:5:4)||C vEb vGb vBb||C downminor7 downflat-5||Cvm7(vb5)||C sub7||Cs7|
|12/(12:10:8:7)||C Eb G ^A||C minor up-6||Cm^6||C sub6||Cs6|