I made an android app that implements isomorphic note layouts. They can be divided to hexagonal tiling (harmonic table layout, Wicki-Hayden layout, Janko) and r

I made an android app that implements isomorphic note layouts. They can be divided to hexagonal tiling (harmonic table layout, Wicki-Hayden layout, Janko) and rectangular tiling (bass/violin/mandolin fretboard). The app does not allow choosing between those layouts, because customization stands in way of creativity. You can still customize anything by modifying code and have it interpreted on phone without re-compiling anything. To recreate Janko, you would modify hexpad.lua and set NE interval to 1 and N interval to -1. Here's the code https://github.com/jmiskovic/hexpress https://github.com/jmiskovic/hexpress The appeal of isomorphic lauyout is that everything you learn (intervals, scales & modes, chords, progressions, riffs) can be applied across all keys. Some musical patterns become more obvious and learning becomes less tedious. Another nice benefit is that such layouts are mostly two-dimensional, so they make good use of small screens.