Lumatone mapping for 57edo: Difference between revisions
→Diatonic (sharp fifth; Mothra): Demo video is Part 1 of a 2 part series — Part 2 uses a different Lumatone mapping |
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There are many conceivable ways to map [[57edo]] onto the onto the Lumatone keyboard. However, it has 3 mutually-exclusive rings of fifths, so the [[Standard Lumatone mapping for Pythagorean]] is not one of them, unless the very sharp b val is used. Due to the large number of notes, even those that do will have limited range. | There are many conceivable ways to map [[57edo]] onto the onto the Lumatone keyboard. However, it has 3 mutually-exclusive rings of fifths, so the [[Standard Lumatone mapping for Pythagorean]] is not one of them, unless the very sharp b val is used. Due to the large number of notes, even those that do will have limited range. | ||
== Diatonic (sharp fifth | == Diatonic (sharp fifth) + Mothra (flat fifth) == | ||
The 57b val has a fifth so sharp that using it to play a pentatonic scale would sound more like a circulating temperament of [[5edo]] than a pentatonic scale of [[Meantone]], [[Superpyth]], or any of their relatives. The sharp fifth does have the feature that six of them add up to 12/1, which octave-reduces to the [[Patent val|patent]] fifth, and the diatonic mapping does provide easy access to the patent fifth (just up and left of the sharp fifth, which is also three keys right of the root note), so on a hypothetical XL-sized Lumatone having enough keys to avoid skipping notes, it would be a reasonable mapping despite giving an extremely hard [[5L 2s]] scale and nearly equalized [[2L 3s]] scale. The division of the patent fifth into three intervals all in a row, each of which is an essentially just septimal whole tone (~[[8/7]]), makes this a good [[Gamelismic_clan#Mothra|Mothra]] mapping. Despite the missing notes, [[Bryan Deister]] has demonstrated this mapping in [https://www.youtube.com/shorts/FylRB5MGBz4 ''<nowiki>Prelude in 57edo (Part 1) [short clip]</nowiki>''] (2025). | The 57b val has a fifth so sharp that using it to play a pentatonic scale would sound more like a circulating temperament of [[5edo]] than a pentatonic scale of [[Meantone]], [[Superpyth]], or any of their relatives. The sharp fifth does have the feature that six of them add up to 12/1, which octave-reduces to the [[Patent val|patent]] fifth, and the diatonic mapping does provide easy access to the patent fifth (just up and left of the sharp fifth, which is also three keys right of the root note), so on a hypothetical XL-sized Lumatone having enough keys to avoid skipping notes, it would be a reasonable mapping despite giving an extremely hard [[5L 2s]] scale and nearly equalized [[2L 3s]] scale. The division of the patent fifth into three intervals all in a row, each of which is an essentially just septimal whole tone (~[[8/7]]), makes this a good [[Gamelismic_clan#Mothra|Mothra]] mapping. Despite the missing notes, [[Bryan Deister]] has demonstrated this mapping in [https://www.youtube.com/shorts/FylRB5MGBz4 ''<nowiki>Prelude in 57edo (Part 1) [short clip]</nowiki>''] (2025). | ||
{{Lumatone EDO mapping|n=57|start=18|xstep=11|ystep=-10}} | {{Lumatone EDO mapping|n=57|start=18|xstep=11|ystep=-10}} | ||