121/81
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Ratio | 121/81 |
Factorization | 3^{-4} × 11^{2} |
Monzo | [0 -4 0 0 2⟩ |
Size in cents | 694.81588¢ |
Name | Alpharabian narrow fifth |
Color name | 1oo5, lolo 5th |
FJS name | [math]\text{d5}^{11,11}[/math] |
Special properties | reduced |
Tenney height (log_{2} nd) | 13.2587 |
Weil height (log_{2} 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 |
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.