Accidentals for 31-EDO

The following table shows the accidentals for the 31-tone equal-temperament system (31-EDO).

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xStepxAlter.xCentsxstdxsagxmsagxstzxsth
000
+1+6/31+38 22⁄31
−1−6/31−38 22⁄31
+2+12/31+77 13⁄31
−2−12/31−77 13⁄31
+3+18/31+116 4⁄31
−3−18/31−116 4⁄31
+4+24/31+154 26⁄31
−4−24/31−154 26⁄31
+5+30/31+193 17⁄31
−5−30/31−193 17⁄31
std — Standard notation

Arrow symbols after Gould, and Standard sharp / flat symbols. The symbols are placed either alone or a Standard symbol is combined with an arrow symbol.

sag — Sagittal notation

Sagittal (“arrow-like”) symbols after George D. Secor and David C. Keenan, sagittal.org. sag is the "Pure Sagittal notation" in contrast to msag. It uses one distinct symbol for each alteration up to the whole tone. For higher alterations, two symbols are combined.

msag — Mixed Sagittal notation

Sagittal (“arrow-like”) symbols after George D. Secor and David C. Keenan, sagittal.org, and Standard sharp / flat symbols using the large double-sharp symbol. The symbols are placed either alone or a Standard symbol is combined with a Sagittal symbol.

stz — Stein / Zimmermann notation

Fractional sharp symbols and quarter-tone flat symbol after Richard Stein, three-quarters-tone flat symbol after Bernd A. Zimmerman (replacing Stein's “sesquiflat” symbol), and Standard sharp / flat symbols. Uses the narrow variant of the reversed flat.

sth — Stein / Half flat notation

Fractional sharp symbols after Richard Stein, half flat symbols, and Standard sharp / flat symbols. The half flat symbols are “Optional Glyphs” of the Ekmelos font.