Comma (music) Article Index for
Comma
 

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Comma (music)




All of the intervals mentioned below are presumed to be tuned in Just Intonation .

There are many commas, notably :
  • Pythagorean Comma or ditonic comma (difference between 7 Octave s and 12 Perfect Fifth s)

  • Syntonic Comma , the difference between four perfect fifths and two major thirds plus two octaves

  • Schisma , the difference between 8 perfect fifths plus one major third and 5 octaves (equal to the interval between Pythagorean comma and syntonic comma)

  • Diaschisma , the difference between 4 fifths plus 2 thirds and 3 octaves


Equal Temperament was introduced as a way of avoiding commas, since enharmonic notes are tuned identically in that system.

Also see List Of Musical Intervals .