Lumatone mapping for 15edo: Difference between revisions

Porcupine: Add demo video for semi-expanded version
 
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== Porcupine ==
== Porcupine ==
[[Porcupine]] is a popular temperament that 15edo supports, although the semi-expanded mapping here ([[1L 6s]] scale with 3:2 step ratio and no backtracking) spreads the octaves out more than is optimal for such a small tuning system as 15edo, thereby limiting the range to somewhat over four octaves, which slope upwards too much for convenience in splitting the keyboard into multiple manuals.
[[Porcupine]] is a popular temperament that 15edo supports, although the semi-expanded mapping here ([[1L 6s]] scale with 3:2 step ratio and no backtracking) spreads the octaves out more than is optimal for such a small tuning system as 15edo, thereby limiting the range to somewhat over four octaves, which slope upwards too much for convenience in splitting the keyboard into multiple manuals. [[Bryan Deister]] demonstrates this mapping (but shifted right to avoid missing the upper note 1) in [https://www.youtube.com/shorts/uYlLryh1BbI ''March in 15edo''] (2026).
{{Lumatone EDO mapping|n=15|start=0|xstep=2|ystep=1}}
{{Lumatone EDO mapping|n=15|start=0|xstep=2|ystep=1}}