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Interval information
Ratio 55/49
Factorization 5 × 7-2 × 11
Monzo [0 0 1 -2 1
Size in cents 199.97984¢
Name werckismic tone
Color name 1orry1, loruruyo unison
FJS name [math]\text{A1}^{5,11}_{7,7}[/math]
Special properties reduced
Tenney height (log2 nd) 11.3961
Weil height (log2 max(n, d)) 11.5627
Wilson height (sopfr (nd)) 30
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.56863 bits

[sound info]
open this interval in xen-calc

55/49, the werckismic tone, is 0.02 cents flat of the 200 cent tone of 12edo, and 441/440 (3.9 cents) flat of the major whole tone, 9/8. It is identified with the 200 cent tone by the spoob comma, which sets 6 instances of this interval to be equal to the octave. This is related to the fact that two schismas (32805/32768 each) are very nearly 441/440, differing only by the comma [27 -14 -3 2 -1 of 0.02 cents. It arises in 11-limit scales as the interval from 7/5 to 11/7.

In Functional Just System and Helmholtz-Ellis notation, this interval is represented by an augmented unison.

See also