Lumatone mapping for 42edo
There are many conceivable ways to map 42edo onto the onto the Lumatone keyboard. However, as both of its fifths are about as far away from just as possible, neither the sharp or the flat versions of the Standard Lumatone mapping for Pythagorean work particularly well. The patent val is slightly better, which gives ultrapyth.

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The Lemba mapping is also of particular interest despite using a non patent val.

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