← 8ed88 9ed88 10ed88 →
Prime factorization 32
Step size 861.258 ¢ 
Octave 1\9ed88 (861.258 ¢)
Twelfth 2\9ed88 (1722.52 ¢)
(semiconvergent)
Consistency limit 3
Distinct consistency limit 2

9 equal divisions of the 88th harmonic (abbreviated 9ed88) is a nonoctave tuning system that divides the interval of 88/1 into 9 equal parts of about 861 ¢ each. Each step represents a frequency ratio of 881/9, or the 9th root of 88.

Intervals

Steps Cents Approximate ratios
0 0 1/1
1 861.3 5/3, 21/13
2 1722.5 19/7
3 2583.8 9/2, 22/5
4 3445 22/3
5 4306.3
6 5167.5
7 6028.8
8 6890.1
9 7751.3

Harmonics

Approximation of prime harmonics in 9ed88
Harmonic 2 3 5 7 11 13 17 19 23 29 31
Error Absolute (¢) -339 -179 -203 +76 +155 -134 +263 +70 -261 +199 +84
Relative (%) -39.3 -20.8 -23.5 +8.8 +18.0 -15.6 +30.5 +8.1 -30.3 +23.1 +9.7
Steps
(reduced)
1
(1)
2
(2)
3
(3)
4
(4)
5
(5)
5
(5)
6
(6)
6
(6)
6
(6)
7
(7)
7
(7)