121/81
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Ratio
121/81
Factorization
3-4 × 112
Monzo
[0 -4 0 0 2⟩
Size in cents
694.8159¢
Name
Alpharabian narrow fifth
Color name
1oo5, lolo 5th
FJS name
[math]\text{d5}^{11,11}[/math]
Special properties
reduced
Tenney height (log2 nd)
13.2587
Weil height (log2 max(n, d))
13.8377
Wilson height (sopfr(nd))
34
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~3.6023 bits
open this interval in xen-calc
| Interval information |
(Shannon, [math]\sqrt{nd}[/math])
121/81, the Alpharabian narrow fifth or lolo 5th (694.8¢), is a Lulu comma 243/242 (7.1¢) below the just fifth 3/2. It is the interval created by stacking two 11/9 neutral thirds, and can be considered a meantone fifth. It differs from the marvellous fifth 112/75 by 3025/3024. Since 38edo represents 11/9 near perfectly, it also represents this near perfectly as well.