405/392

Interval information

Ratio	405/392
Factorization	2-3 × 34 × 5 × 7-2
Monzo	[-3 4 1 -2⟩
Size in cents	56.4819¢
Name	greenwoodma
Color name	rry-2, ruruyo negative 2nd
FJS name	[math]\displaystyle{ \text{d}{-2}^{5}_{7,7} }[/math]
Special properties	reduced
Tenney height (log2 nd)	17.2765
Weil height (log2 max(n, d))	17.3236
Wilson height (sopfr(nd))	37
Comma size	medium
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405/392, the greenwoodma, is a 7-limit medium comma. Tempering it out, this leads to the greenwoodmic temperaments.

Sagittal notation

In the Sagittal system, the downward version of this comma (possibly tempered) is represented by the sagittal ⁠ ⁠ and is called the 49/5 medium diesis, or 49/5M for short, because the simplest interval it notates is 49/5 = 7×7/5 (equiv. 49/40), as for example in C-E⁠ ⁠⁠ ⁠. The upward version is called 5/49M or 49/5M up and is represented by ⁠ ⁠.