The izar comma (ratio: 13841287201/13839609375, monzo: [0 -11 -7 12⟩) is an unnoticeable 3.5.7 subgroup comma with a value of approximately 0.21 ¢. It is the amount by which six intervals of 49/45 exceed 5/3, and in the 3.5.7 subgroup defines a microtemperament known as izar, which is supported not only by 13edt (the equal-tempered Bohlen-Pierce scale) but by various no-twos zeta peaks, such as 800edt, 1342edt, and 6181edt.
| Ratio
|
13841287201/13839609375
|
| Factorization
|
3-11 × 5-7 × 712
|
| Monzo
|
[0 -11 -7 12⟩
|
| Size in cents
|
0.2098711¢
|
| Name
|
izar comma
|
| Color name
|
TBD
|
| FJS name
|
[math]\displaystyle{ \text{9d8}^{7,7,7,7,7,7,7,7,7,7,7,7}_{5,5,5,5,5,5,5} }[/math]
|
| Special properties
|
reduced
|
| Tenney norm (log2 nd)
|
67.3763
|
| Weil norm (log2 max(n, d))
|
67.3765
|
| Wilson norm (sopfr(nd))
|
152
|
| Comma size
|
unnoticeable
|
| Open this interval in xen-calc
|
