11ed7
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This page presents a niche topic.
While not arbitrary, it may contain ideas whose practical applications in music are unknown or narrow in scope. Niche topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks. |
← 10ed7 | 11ed7 | 12ed7 → |
(semiconvergent)
11 equal divisions of the 7th harmonic (abbreviated 11ed7) is a nonoctave tuning system that divides the interval of 7/1 into 11 equal parts of about 306 ¢ each. Each step represents a frequency ratio of 71/11, or the 11th root of 7.
Harmonics
Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +25 | -64 | +50 | -30 | -39 | +0 | +75 | -129 | -5 | +136 | -14 |
Relative (%) | +8.2 | -21.0 | +16.3 | -9.8 | -12.9 | +0.0 | +24.5 | -42.1 | -1.6 | +44.5 | -4.7 | |
Steps (reduced) |
4 (4) |
6 (6) |
8 (8) |
9 (9) |
10 (10) |
11 (0) |
12 (1) |
12 (1) |
13 (2) |
14 (3) |
14 (3) |