88/81

Interval information

Ratio	88/81
Factorization	23 × 3-4 × 11
Monzo	[3 -4 0 0 1⟩
Size in cents	143.4979¢
Names	2nd undecimal neutral second, Alpharabian artoneutral second
Color name	1o2, ilo second
FJS name	[math]\displaystyle{ \text{m2}^{11} }[/math]
Special properties	reduced
Tenney height (log2 nd)	12.7993
Weil height (log2 max(n, d))	12.9189
Wilson height (sopfr(nd))	29
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~4.25128 bits
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88/81, the 2nd undecimal neutral second, is an interval of about 143.5 cents. It is 352/351 (4.9 cents) sharp of 13/12 and 243/242 (7.1 cents) flat of 12/11. It is also the interval between 9/8 and 11/9. In Alpharabian tuning it is known as the Alpharabian artoneutral second.

See also

• 81/44 – its octave complement
• Gallery of just intervals