128/121

Interval information

Ratio	128/121
Factorization	27 × 11-2
Monzo	[7 0 0 0 -2⟩
Size in cents	97.36412¢
Names	Alpharabian diatonic semitone, octave-reduced 121st subharmonic
FJS name	[math]\displaystyle{ \text{M2}_{121} }[/math]
Special properties	reduced, reduced subharmonic
Tenney height (log2 nd)	13.9189
Weil height (log2 max(n, d))	14
Wilson height (sopfr(nd))	36
[sound info]
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128/121, the Alpharabian diatonic semitone, or octave-reduced 121st subharmonic, is an 11-limit semitone with a value of roughly 97.36412 cents. As the name "Alpharabian diatonic semitone" suggests, it acts as the diatonic counterpart to the 1089/1024, with the two intervals adding up to a 9/8 whole tone.