Alchemisma

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Interval information
Factorization 2-82 × 3-1 × 536
Monzo [-82 -1 36
Size in cents 5.338698 ¢
Name alchemisma
Color name quinla-quadtritriyo negative 10th,

L5y36-10

FJS name [math]\displaystyle{ \text{20d}{-10}^{5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5} }[/math]
Special properties reduced
Tenney norm (log2 nd) 167.174
Weil norm (log2 max(n, d)) 167.179
Wilson norm (sopfr(nd)) 347
Open this interval in xen-calc

The alchemisma is a small 5-limit comma measuring about 5+13 cents. It is the amount by which 36 5/4s exceeds a single 3/2, octave-reduced. Tempering it out leads to the alchemy temperament, which has its ~3/2 at 36 generators of ~5/4. This temperament extends naturally to the 2.3.5.11 subgroup, with ~11/8 found at -11 generators.