Oneirotonic: Difference between revisions
From Xenharmonic Reference
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* 21edo (hardness 3/2) | * 21edo (hardness 3/2) | ||
* 13edo (hardness 2/1) | * 13edo (hardness 2/1) | ||
* 18edo (hardness 3/1) | * 18edo (hardness 3/1): Minor 2-step is an excellent 7/6 | ||
* 23edo (hardness 4/1) | * 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. | * 28edo (hardness 5/1) and harder support 2.3.7 Buzzard which equates four perfect 3-oneirosteps with a 3/1. | ||
{{Cat|MOS patterns}} | {{Cat|MOS patterns}} | ||
Revision as of 01:12, 12 January 2026
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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. It is notable for being a compressed diatonic with one extra small step.
Notation
This article uses ground's oneirotonic notation, which preserves the diatonic order of letter names when stacking fourths (with one extra nominal): BEADGCFX. Chroma up is denoted #, chroma down as b. The all-natural Celephaisian mode is ACBDFEGXA.
Structural theory
Modes
| Mode name | Pattern | 1-step | 2-step | 3-step | 4-step | 5-step | 6-step | 7-step |
|---|---|---|---|---|---|---|---|---|
| Sarnathian | sLsLLsLL | m | m | d | m | P | m | m |
| Hlanithian | sLLsLsLL | m | m | P | m | P | m | m |
| Kadathian | sLLsLLsL | m | m | P | m | P | M | m |
| Mnarian | LsLsLLsL | M | m | P | m | P | M | m |
| Ultharian | LsLLsLsL | M | m | P | M | P | M | m |
| Celephaisian | LsLLsLLs | M | m | P | M | P | M | M |
| Ilarnekian | LLsLsLLs | M | M | P | M | P | M | M |
| Dylathian | LLsLLsLs | M | M | P | M | A | M | M |
Modes of altered oneirotonic
The altered oneirotonic scale has a compressed tritone LLL and recreates that characteristic of diatonic. The mode names of altered oneirotonic are portmanteaux 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 | sLLsLsLL | 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 | LsLLsLsL | 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
- 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.
