Sequence of Five 3 quarter tones in persian music is a perfect 5th! 3/4 tone = 140 cents

A musical octave is 6 chromatic whole tones, each whole tone is 200 cents. A perfect fifth (the interval between C and G) is 701 cents. Since a Persian 3/4 tone interval is 140 cents, a sequence of five 3/4 tones provides a perfect 5th. Interestingly, a minor third ( interval between c to E flat) in Persian music is flatter than a diatonic or chromatic minor third and is about 280 cents which happens to be double the 3/4 tone of 140 cents). Octave= 12 half tones Chromatic half tone = 100 cent
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