4921/4920

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Interval information
Ratio 4921/4920
Factorization 2-3 × 3-1 × 5-1 × 7 × 19 × 37 × 41-1
Monzo [-3 -1 -1 1 0 0 0 1 0 0 0 1 -1
Size in cents 0.3518411¢
Name volontisma
Color name 41u37o19ozg3
fowuthisonozogu 3rd
FJS name [math]\displaystyle{ \text{d2}^{7,19,37}_{5,41} }[/math]
Special properties superparticular,
reduced
Tenney height (log2 nd) 24.5292
Weil height (log2 max(n, d)) 24.5295
Wilson height (sopfr(nd)) 118
Harmonic entropy
(Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])
~1.20025 bits
Comma size unnoticeable
Open this interval in xen-calc

4921/4920, the volontisma, is a 41-limit superparticular comma of about 0.35 cents.

Commatic relationships

This comma is the difference between the following superparticular pairs:

It can be factored into the following superparticular ratios:

Temperaments

Tempering out this comma in the full 41-limit leads to the rank-12 temperament volontismic. Using the 2.3.5.7.19.37.41 subgroup leads to the rank-6 temperament volontic.

Volontic

Subgroup: 2.3.5.7.19.37.41

Comma list: 4921/4920

Mapping:

[⟨ 1 1 2 2 4 5 5 ],
0 1 0 0 0 0 -1 ],
0 0 1 0 0 0 -1 ],
0 0 0 1 0 0 1 ],
0 0 0 0 1 0 1 ],
0 0 0 0 0 1 1 ]]

Optimal tuning (CTE): ~2 = 1\1, ~3/2 = 701.965, ~5/4 = 386.335, ~7/4 = 968.795, ~19/16 = 297.442, ~37/32 = 251.238

Optimal ET sequence5h, 7dm, 7, 8d, 8dhhmm, 9, 10m, 12l, 12m, 19hm, 19, 22, 26, 27, 41lm, 50m, 53, 80, 99m, 130, 140, 149, 152m, 171, 202, 270, 311, 460, 472, 513, 783, 1296, 1323, 1376, 1578l, 1795, 1848, 2361l, 3144l, 4007, 4209hl, 4520hl, 4619, 4992hl, 5532hl, 6315hl, 6368hl

Badness (Sintel): 0.087

Music

Etymology

This comma was named by Francium in 2025. It refers to 4921 Volonté, the asteroid, which in turn was named after Gian Maria Volonté, an Italian actor.

See also