41-comma

[65 -41⟩, the 41-comma, is an interval of 19.845 cents. It is the amount by which 41 fifths (3/2) fall short of 24 octaves, in other words 2²⁴/(3/2)⁴¹. For equal divisions N up to 1230, the comma is tempered out if and only if 41 divides N. Examples are 41edo, 164edo, 205edo, 246edo, 328edo and 369edo.

Interval information

Ratio	36893488147419103232 / 36472996377170786403
Factorization	265 × 3-41
Monzo	[65 -41⟩
Size in cents	19.84496¢
Names	41-comma, 41-3-comma
FJS name	[math]\displaystyle{ \text{6d5} }[/math]
Special properties	reduced, reduced subharmonic
Tenney norm (log2 nd)	129.983
Weil norm (log2 max(n, d))	130
Wilson norm (sopfr(nd))	253
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Temperaments

Tempering out the 41-comma splits the octave into 41 equal parts and maps the harmonic 3 to 24\41. It leads to a number of regular temperaments in the 41-commatic family.

41-commatic (41&205)

Subgroup: 2.3.5

Comma list: [65 -41⟩

Mapping: [⟨41 65 0], ⟨0 0 1]]

Mapping generators: ~531441/524288, ~5

POTE generator: ~5/4 = 386.668

Badness: 0.934310

See also

• Comma