2240/2187

2240/2187, the septimal inframinor second or mint inframinor second, is a 7-limit interval measuring about 41.5 ¢. It is flat of the Pythagorean minor second by a septimal quartertone. Equivalently, it is flat of 20480/19683, the retroptolemaic minor second, by 64/63, an Archytas' comma, and flat of 28/27, the septimal minor second, by 81/80, a syntonic comma.

Interval information

Ratio	2240/2187
Factorization	26 × 3-7 × 5 × 7
Monzo	[6 -7 1 1⟩
Size in cents	41.45461¢
Names	septimal inframinor second, mint inframinor second
Color name	sazoyo 2nd, szy2, Sazoyo comma
FJS name	[math]\displaystyle{ \text{m2}^{5,7} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	22.224
Weil norm (log2 max(n, d))	22.2586
Wilson norm (sopfr(nd))	45
Comma size	medium
Open this interval in xen-calc

Temperaments

This interval is treated as a comma and is tempered out in rank-2 temperaments such as superpyth, sharptone, and porky.