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Lumatone mapping for 26edo

Revision as of 01:54, 5 July 2026 by Lucius Chiaraviglio (talk | contribs) (→Diatonic: Add video that demonstrates chord shapes with running commentary)
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There are many conceivable ways to map 26edo onto the onto the Lumatone keyboard. Only one, however, agrees with the Standard Lumatone mapping for Pythagorean.

Diatonic

Being in the flattone part of meantone, and indeed at the flat end of flattone itself, 26edo requires some adjustment to convert common practice music to sound right, and what is technically a diatonic layout (although fairly extreme in its softness) may require different usage than in a more middle-of-the-road diatonic tuning. YoVariable demonstrates this mapping in Jingle Bells (26edo microtonal Lumatone cover + Mystery Song) (2025) and explains the harmonic characteristics of 26edo (with demonstrations of chord shapes on this layout) in A rough introduction to 26edo on the Lumatone by YoVariable (2026).

 
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Orgone

However, 26edo is a flattone system that does not have very accurate 5-limit approximations, so other options are probably preferable. If you want to maximise the playable range and put the best consonances close to each other, the orgone mapping is the clear winner.

 
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Other mappings

The Lemba and Hendec mappings also work particularly well in 26edo.

Lemba

Bryan Deister has demonstrated this mapping in Waltz in 26edo (2025), and explains that right and up yields the minor third (~6/5, fairly sharp) and right three times yields the fifth (~3/2, fairly flat).

 
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Hendec

 
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