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Interval information
Ratio 54/49
Monzo [1 3 0 -2
Size in cents 168.21319
Name(s) Zalzal's mujannab
Color name rr1, ruru augmented unison

[sound info]

168.2132 cents

Zalzal's mujannab, the interval of 54/49 introduced by Mansour Zalzal, is between 11/10 and 10/9 in size, being 540/539 sharp of 11/10 and 245/243 flat of 10/9. It is the interval between 7/6 and 9/7. Tempering out 540/539 equates it with 11/10 and leads to swetismic chords. Occurring often in JI scales, it is one of the ways 11-limit harmony gets introduced into 7-limit scales.

See also