Lumatone mapping for 44edo
There are many conceivable ways to map 44edo onto the onto the Lumatone keyboard. However, it has 2 mutually-exclusive rings of fifths, so the Standard Lumatone mapping for Pythagorean is not one of them.
Antidiatonic
You can use the b val, which can be interpreted as either near equalised mavila, or more accurately but complexly as undecimation.
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Pseudo-Isomorphic Pseudo-Diatonic
To get a quasi-diatonic layout with a reasonable fifth, you can shoehorn the diatonic mapping for 45edo into 44edo, with note 44 being a duplicate note 0, as Bryan Deister demonstrates in 44edo improv (Oct 2025)
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Neutral thirds
Another option is to slice the perfect fifth in half, giving this mapping, which is derived from the Lumatone mapping for neutral thirds scales:
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Semiquartal
Slicing the perfect fourth in half also works, but the 4L 1s mapping does not cover the whole gamut:
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Expanding this to the 5L 4s mapping solves this problem, but the scale has an 8:1 step ratio, making it very lopsided.
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Hemifourths
However, it is the Hemifourths mapping that combines the widest range that covers the full gamut with the most efficient way of reaching all prime harmonics up to 17.
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