2553/2552, the viljevisma, is a 37-limit superparticular comma of about 0.68 cents.

Interval information
Ratio 2553/2552
Factorization 2-3 × 3 × 11-1 × 23 × 29-1 × 37
Monzo [-3 1 0 0 -1 0 0 0 1 -1 0 1⟩
Size in cents 0.6782504 ¢
Name viljevisma
Color name 37o29u23o1u2
thisotwenutwetholu 2nd
FJS name [math]\displaystyle{ \text{d}{-2}^{23,37}_{11,29} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 22.6354
Weil norm (log2 max(n, d)) 22.636
Wilson norm (sopfr(nd)) 109
Comma size unnoticeable
Open this interval in xen-calc

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 37-limit leads to the rank-11 temperament viljevismic. Using the 2.3.11.23.29.37 subgroup leads to the rank-5 temperament viljevic.

Viljevismic

Subgroup: 2.3.5.7.11.13.17.19.23.29.31.37

Comma list: 2553/2552

Mapping:

[⟨ 1 1 2 2 3 3 4 4 4 4 4 5 ],
⟨ 0 1 0 0 0 0 0 0 0 0 0 -1 ],
⟨ 0 0 1 0 0 0 0 0 0 0 0 0 ],
⟨ 0 0 0 1 0 0 0 0 0 0 0 0 ],
⟨ 0 0 0 0 1 0 0 0 0 0 0 1 ],
⟨ 0 0 0 0 0 1 0 0 0 0 0 0 ],
⟨ 0 0 0 0 0 0 1 0 0 0 0 0 ],
⟨ 0 0 0 0 0 0 0 1 0 0 0 0 ],
⟨ 0 0 0 0 0 0 0 0 1 0 0 -1 ],
⟨ 0 0 0 0 0 0 0 0 0 1 0 1 ],
⟨ 0 0 0 0 0 0 0 0 0 0 1 0 ]]

Optimal tuning (CTE): ~2 = 1\1, ~3/2 = 701.935, ~5/4 = 386.314, ~7/4 = 968.826, ~11/8 = 551.413, ~13/8 = 840.528, ~17/16 = 104.955, ~19/16 = 297.513, ~23/16 = 628.112, ~29/16 = 1029.764, ~31/16 = 1145.036

Viljevic

Subgroup: 2.3.11.23.29.37

Comma list: 2553/2552

Mapping:

[⟨ 1 1 3 4 4 5 ],
⟨ 0 1 0 0 0 -1 ],
⟨ 0 0 1 0 0 1 ],
⟨ 0 0 0 1 0 -1 ],
⟨ 0 0 0 0 1 1 ]]

Optimal tuning (CTE): ~2 = 1\1, ~3/2 = 701.935, ~11/8 = 551.413, ~23/16 = 628.112, ~29/16 = 1029.764

Optimal ET sequence: 5i, 7ijj, 7, 10i, 12el, 14, 15, 17, 29, 31j, 46j, 48, 111, 128, 159, 176, 224, 248, 311, 359, 735, 783, 812, 860, 1171, 1219, 2614il, 2973il

Etymology

This comma was named by Francium in 2024. It refers to 2553 Viljev, which in turn was named after Mikhail Anatolyevich Vilyev, a Russian astronomer.

See also