255/128

Interval information

Ratio	255/128
Factorization	2-7 × 3 × 5 × 17
Monzo	[-7 1 1 0 0 0 1⟩
Size in cents	1193.224¢
Names	charismic suboctave, octave-reduced 255th harmonic
Color name	17oy8, soyo 8ve
FJS name	[math]\displaystyle{ \text{P8}^{5,17} }[/math]
Special properties	reduced, reduced harmonic
Tenney height (log2 nd)	14.9944
Weil height (log2 max(n, d))	15.9887
Wilson height (sopfr(nd))	39
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~2.59125 bits
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255/128, the charismic suboctave is the inversion of the charisma, 256/255. As such, it is very near a full octave.

See also

• 256/255 – its octave complement
• Gallery of just intervals
• Ed255/128 – equal division of octave-reduced 255th harmonic