There are many conceivable ways to map 29edo onto the onto the Lumatone keyboard. Only one, however, agrees with the Standard Lumatone mapping for Pythagorean.
Diatonic
This is "Preset 7 — 29-HTT Bosanquet" in version 1.0 of the official Lumatone manual (it does not appear in version 1.21).
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Semiquartal (Immunity)
The 4L 1s Immunity mapping works particularly well if you want a larger range, as barbados chords are tuned very accurately, gentle ones slightly less so, and 5-limit ones have far higher error, which conveniently aligns with the ease of fingering those types of chord.
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This can be compressed down to a 1L 3s mapping that maximises range and keeps octaves even closer to horizontal, but makes the fingerings for non-barbados chords more awkward to play.
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Porcupine
If you do want to focus on the 5-limit, the 1L 6s Porcupine mapping makes it as easily accessible as possible for this edo and has the same range as the diatonic mapping.
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