18241/18240, the genzelisma, is a 37-limit superparticular comma of about 0.095 cents.

Interval information
Ratio 18241/18240
Factorization 2-6 × 3-1 × 5-1 × 17 × 19-1 × 29 × 37
Monzo [-6 -1 -1 0 0 0 1 -1 0 1 0 1⟩
Size in cents 0.09491155 ¢
Name Genzelisma
Color name 37o29o19u17og2
thisotwenonusogu 2nd
FJS name [math]\displaystyle{ \text{d1}^{17,29,37}_{5,19} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 28.3097
Weil norm (log2 max(n, d)) 28.3098
Wilson norm (sopfr(nd)) 122
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 following superparticular intervals:

Temperaments

Tempering out this comma in the full 37-limit leads to the rank-11 temperament genzelismic. Using the 2.3.5.17.19.29.37 subgroup leads to the rank-6 temperament genzelic.

Genzelismic

Subgroup: 2.3.5.7.11.13.17.19.23.29.31.37

Comma list: 18241/18240

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 1 ],
⟨ 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 0 0 -1 ],
⟨ 0 0 0 0 0 0 0 1 0 0 0 1 ],
⟨ 0 0 0 0 0 0 0 0 1 0 0 0 ],
⟨ 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 = 701.958, ~5/4 = 386.319, ~7/4 = 968.826, ~11/8 = 551.318, ~13/8 = 840.528, ~17/16 = 104.938, ~19/16 = 297.531, ~23/16 = 628.274, ~29/16 = 1029.553, ~31/16 = 1145.036

Genzelic

Subgroup: 2.3.5.17.19.29.37

Comma list: 18241/18240

Mapping:

[⟨ 1 1 2 4 4 4 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 = 701.958, ~5/4 = 386.319, ~17/16 = 104.938, ~19/16 = 297.531, ~29/16 = 1029.553

Optimal ET sequence: 5g, 5ghj, 7gh, 10j, 10h, 12, 19gh, 19, 22h, 24, 26, 34, 38j, 43, 46hj, 53, 56, 65l, 72, 77, 80, 99, 106, 149, 183, 205, 388, 472, 513, 559, 593, 631, 677, 730, 836, 1041, 1190, 1395, 1718, 1795, 2000, 2836, 3190, 4026, 6026, 8257, 8934, 10052

Etymology

This comma was named by Francium in 2024. It refers to 18241 Genzel, the asteroid, which in turn was named after the German astronomer Reinhard Genzel.

See also