3L 3s
The true MOS is LsLsLs but interesting near-MOSs include LLsLss and LLssLs. The MOS is always proper but the other forms are only proper if the generator is larger than 1\9 of an octave (so not augmented).
| ↖ 2L 2s | ↑ 3L 2s | 4L 2s ↗ |
| ← 2L 3s | 3L 3s | 4L 3s → |
| ↙ 2L 4s | ↓ 3L 4s | 4L 4s ↘ |
Scale structure
sLsLsL
Generator size
TAMNAMS information
Related MOS scales
Equal tunings
| Generator | Cents | Comments | ||||
|---|---|---|---|---|---|---|
| 0\3 | 0 | |||||
| 1\15 | 80 | L/s = 4 | ||||
| 2\27 | 88.88 | Optimal augmented is around here | ||||
| 400/(1+pi) | ||||||
| 1\12 | 100 | L/s = 3 | ||||
| 400/(1+e) | ||||||
| 3\33 | 109.09 | |||||
| 400/(2+phi) | ||||||
| 2\21 | 114.29 | |||||
| 1\9 | 133.33 | Boundary of propriety for near-MOS
Optimum rank range (L/s=2/1) for MOS | ||||
| 400/(1+sqrt(3)) | ||||||
| 3\24 | 150 | |||||
| 400/(1+phi) | ||||||
| 5\39 | 153.85 | |||||
| 400/(1+pi/2) | ||||||
| 2\15 | 160 | |||||
| 1\6 | 200 | |||||
Out of all proper six-note MOS scales, this augmented scale probably has the lowest harmonic entropy.