Ptolemi-nicema: Difference between revisions

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Revision as of 18:50, 8 September 2023

Interval information
Factorization 2137 × 3-138 × 5138 × 11-69
Monzo [137 -138 138 0 -69
Size in cents 0.5643708¢
Name ptolemismic nicema
Color name s101u69y138-8,
quinbisa-twethetriluyoyo negative octave
Special properties reduced
Tenney norm (log2 nd) 914.852
Weil norm (log2 max(n, d)) 914.852
Wilson norm (sopfr(nd)) 2137
Comma size unnoticeable
Open this interval in xen-calc

Ptolemismic nicema is an unnoticeable 11-limit comma which marks the difference between 69 intervals of 100/99 and the octave. For EDOs N up to ~20000, it is tempered if and only if 69 divides N.

Tempering it out means that 11/10 and 10/9 are set exactly 1/69th of the octave apart.

Temperaments

By tempering it out, rank-4 ptolemismic nice temperament is defined.