225/224

Interval information

Ratio	225/224
Factorization	2-5 × 32 × 52 × 7-1
Monzo	[-5 2 2 -1⟩
Size in cents	7.711523¢
Names	septimal kleisma, marvel comma
Color name	ryy-2, ruyoyo negative 2nd
FJS name	[math]\displaystyle{ \text{d}{-2}^{25}_{7} }[/math]
Special properties	square superparticular, reduced
Tenney norm (log2 nd)	15.6211
Weil norm (log2 max(n, d))	15.6276
Wilson norm (sopfr(nd))	33
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The interval of 225/224, the septimal kleisma or marvel comma is a superparticular 7-limit ratio. It pops up as the difference between pairs of 7-limit ratios, for example 16/15 and 15/14. It is tempered out in temperaments of the marvel family.

See also

• Marvel family
• Marvel temperaments
• Marvel chords
• Small comma
• List of superparticular intervals
• Wikipedia: Septimal kleisma