3L 2s
The only notable low-harmonic-entropy scale for this MOS pattern is sensi, in which two generators make a 5/3. The harmonic entropy of sensi[5] is still fairly high relative to other pentatonic scales, such as meantone. It's also improper.
Names
The TAMNAMS system suggests the name antipentic, in opposition to pentic used for 2L 3s.
Scale tree
Generator | Cents | s | L-s | Comments | ||||||
---|---|---|---|---|---|---|---|---|---|---|
1\3 | 400 | 0 | 400 | |||||||
8\23 | 417.39 | 52.18 | 365.21 | 8ed(14/11) is near here | ||||||
7\20 | 420 | 60 | 300 | |||||||
6\17 | 423.53 | 70.59 | 282.35 | Skwares is around here | ||||||
17\48 | 425 | 75 | 275 | Squares is around here | ||||||
11\31 | 425.81 | 77.42 | 270.97 | |||||||
5\14 | 428.57 | 85.71 | 257.14 | L/s = 4 | ||||||
435.01 | 105.035 | 224.91 | L/s = pi, essentially perfect 9/7 | |||||||
4\11 | 436.36 | 109.09 | 218.18 | L/s = 3 | ||||||
439.39 | 118.17 | 203.05 | L/s = e | |||||||
11/30 | 440 | 120 | 200 | |||||||
440.59 | 121.78 | 197.04 | ||||||||
7/19 | 442.11 | 126.32 | 189.47 | Sensi is around here | ||||||
3\8 | 450 | 150 | 150 | Boundary of propriety (larger
generators than this are proper) | ||||||
455.59 | 166.76 | 122.07 | ||||||||
8\21 | 457.14 | 171.43 | 114.29 | |||||||
21\55 | 458.18 | 174.55 | 109.09 | |||||||
1200/(1+phi) | 175.08 | 108.20 | Golden petrtri | |||||||
13\34 | 458.82 | 176.47 | 105.88 | |||||||
459.59 | 178.77 | 102.04 | ||||||||
5\13 | 461.54 | 184.62 | 92.31 | Optimum rank range (L/s=3/2) oneirotonic[5] | ||||||
7\18 | 466.67 | 200 | 66.67 | |||||||
9\23 | 469.57 | 208.70 | 52.17 | |||||||
11\28 | 471.43 | 214.29 | 42.86 | |||||||
13\33 | 472.73 | 218.18 | 36.36 | Slendro-like scales in this region | ||||||
2\5 | 480 | 240 | 0 |