17-comma

Interval information

Ratio	134217728/129140163
Monzo	[27 -17⟩
Size in cents	66.76499
Name(s)	17-comma, 17-3-comma
Color name	ssw3, Wa-17
FJS name	dd3
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134217728/129140163 = [27 -17⟩, called the 17-comma, is an interval of 66.765 cents. It is the amount by which seventeen fifths fall short of ten octaves, or 2¹⁰/(3/2)¹⁷. For EDOs up to 150 the 17-comma is tempered out if and only if 17 divides it, for example 17edo, 34edo or 68edo.

See also

• Gallery of Just Intervals
• Medium commas