Xenharmonic Wiki

Lumatone mapping for 50edo

Revision as of 23:08, 13 April 2025 by Lucius Chiaraviglio (talk | contribs) (Add Bryan Deister's reverse-chroma expanded Porcupine mapping, and give standard diatonic a shout-out)

There are many conceivable ways to map 50edo onto the onto the Lumatone keyboard. Only one, however, agrees with the Standard Lumatone mapping for Pythagorean.

Diatonic

Since 50edo is a good Meantone tuning, the Standard Lumatone mapping for Pythagorean is good for it, with a range of just under 5 octaves, which are distributed perfectly horizontally.

 
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Porcupine

Bryan Deister has used a reverse-chroma expanded Porcupine layout for 50edo, as demonstrated in microtonal improv in 50edo (2025). The range is somewhat over 4 octaves, but the octaves ascend so rapidly as to zigzag. (Note that in the video, the upper left corner and whole right end are cut off due to use of only 1 MIDI channel, and the range shown is considerably less than theoretically possible.)

 
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Trimean

If you want to access single step movements in a more intuitive way, the 1L 6s Trimean mapping is probably the best compromise between ease of play and range.

 
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