Nadir comma

1162261467/1048576000, the nadir comma, generates the nadir temperament. It has a melodic shape similar to porcupine or trimean, with a neutral second generator close to 11/10, three of which approximate 4/3.

Interval information

Ratio	1162261467/1048576000
Factorization	2-23 × 319 × 5-3
Monzo	[-23 19 -3⟩
Size in cents	178.2039¢
Name	nadir comma
FJS name	[math]\displaystyle{ \text{A1}_{5,5,5} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	60.0801
Weil norm (log2 max(n, d))	60.2286
Wilson norm (sopfr(nd))	118
Comma size	large
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However, the best approximation to the 5th harmonic is both more complex and causes more damage to the other intervals, leaving it unused for actual composition so far.

It is the furthest 5-limit temperament on the Syntonic-chromatic equivalence continuum that has patent vals other than 7edo, hence the name nadir.

It was named by CompactStar.