Oneirotonic
Oneirotonic is the 5L3s MOS pattern LLsLLsLs. Its generator ranges from equalized 3\8 (450c) to collapsed 2\5 (480c) and the generator's basic tuning (L/s = 2/1) is 5\13 (461.5c). It is notable for being a compressed diatonic with one extra small step.
The basic idea of oneirotonic is sharpening the fifth beyond 5edo: the fifth becomes so sharp that two of them make a subminor/flat minor third and one more note is required to form a MOS.
Notation
This article uses KISS notation, where the Celephaisian mode is 123456781. Chroma up is denoted #, chroma down as b. Alternatively, there is ground's oneirotonic notation, which preserves the diatonic order of letter names when stacking fourths (with one extra nominal): BEADGCFX, again with the Celephaisian mode as ACBDFEGXA. Note that C and B are swapped, and F and E are also swapped.
Structural theory
In the all-natural Celephaisian mode, the generators are arranged in the order 3-6-1-4-7-2-5-8.
Modes
The mode names were originally given by Cryptic Ruse, but they have disavowed them since.
| Mode name | Gens up | Pattern | 1-step | 2-step | 3-step | 4-step | 5-step | 6-step | 7-step |
|---|---|---|---|---|---|---|---|---|---|
| Sarnathian | 0 | sLsLLsLL | m | m | d | m | P | m | m |
| Hlanithian | 1 | sLLsLsLL | m | m | P | m | P | m | m |
| Kadathian | 2 | sLLsLLsL | m | m | P | m | P | M | m |
| Mnarian | 3 | LsLsLLsL | M | m | P | m | P | M | m |
| Ultharian | 4 | LsLLsLsL | M | m | P | M | P | M | m |
| Celephaisian | 5 | LsLLsLLs | M | m | P | M | P | M | M |
| Ilarnekian | 6 | LLsLsLLs | M | M | P | M | P | M | M |
| Dylathian | 7 | LLsLLsLs | M | M | P | M | A | M | M |
Modes of melodic Mnarian
The melodic Mnarian (LsLsLLLs ascending, LsLsLsLL descending) scale has an "LLL" and recreates that characteristic of diatonic. It's the unique binary MODMOS of oneirotonic that doesn't have consecutive s steps. The mode names of melodic Mnarian are portmanteaus of the oneirotonic mode and the diatonic mode the mode sounds most similar to.
| Mode name | Pattern | 1-step | 2-step | 3-step | 4-step | 5-step | 6-step | 7-step |
|---|---|---|---|---|---|---|---|---|
| Sarlocrian | sLsLsLLL | m | m | d | m | d | m | m |
| Sardorian | sLsLLLsL | m | m | d | m | P | M | m |
| Mnaeolian | LsLsLsLL | M | m | P | m | P | m | m |
| Mnionian | LsLsLLLs | M | m | P | m | P | M | M |
| Ulphrygian | sLLLsLsL | m | m | P | M | P | M | m |
| Celdorian | LsLLLsLs | M | m | P | M | A | M | M |
| Ilarmixian | LLsLsLsL | M | M | P | M | P | M | m |
| Dylydian | LLLsLsLs | M | M | A | M | A | M | M |
Notable tunings and tuning ranges
- 37edo (hardness 5/4) to 29edo (hardness 4/3): support the 2.7/5.11/5.13/5 temperament Tridec/Ammonite where the generator is 13/10, the large step is 11/10, and the minor 4-step is 7/5.
- 21edo (hardness 3/2)
- 13edo (hardness 2/1)
- 18edo (hardness 3/1): Minor 2-step is an excellent 7/6; 12edo whole tone.
- 23edo (hardness 4/1)
- 28edo (hardness 5/1) and harder support 2.3.7 Buzzard which equates four perfect 3-oneirosteps with a 3/1.
Chords of oneirotonic
These chord names have been proposed by ground and Inthar.
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