Accidentals for 24-EDO

The following table shows the accidentals for the 24-tone equal-temperament system (24-EDO, quarter-tone system).

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xStepxAlter.xCentsxstcxstzxgoxstvtxarrowxsagxmsagxarabicxpersianxfourxhabaxbl
000
+1+1/4+50
−1−1/4−50
+1+1/4+50
−1−1/4−50
+2+1/2+100
−2−1/2−100
+3+3/4+150
−3−3/4−150
+3+3/4+150
−3−3/4−150
+4+1+200
−4−1−200
+5+5/4+250
−5−5/4−250
stc — Stein / Couper notation

Variant of stz with the three-quarters-tone flat symbol after Mildred Couper. Also known as “Tartini / Couper” notation.

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.

go — Gould notation

Arrow-sharp / flat symbols after Gould and Standard sharp / flat symbols.

stvt — Stein / Van Blankenburg / Tartini notation

Fractional sharp symbols after Richard Stein, quarter-tone flat symbol after Van Blankenburg, three-quarters-tone flat symbol after Giuseppe Tartini, and Standard sharp / flat symbols.

arrow — Arrow 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.

arabic — Arabic notation

Arabic symbols using its own natural sign. See "arabic.ly" in LilyPond which uses a different three-quarters-tone flat symbol.

persian — Persian notation

Persian symbols (Koron, Sori) after Ali-Naghi Vaziri (?), and Standard sharp / flat symbols. The symbols are placed either alone or a Standard symbol is combined with a Persian symbol.

four — Digit 4 notation

sharp / flat symbols with digit 4, and Standard sharp / flat symbols. The symbols are placed either alone or a Standard symbol is combined with a digit-4 symbol.

haba — Hába notation

Quarter-tone symbols after Alois Hába, and Standard sharp / flat symbols.

bl — Blackwood notation

Ring-arrow symbols after Easley Blackwood, and Standard sharp / flat symbols. The symbols are placed either alone or a Standard symbol is combined with a ring-arrow symbol. The ring-arrow symbols are “Optional Glyphs” of the Ekmelos font.