[superpermutat0r]

I think in one of the algorithm lectures by Eric Demaine he outlines the idea of making a dynamic programming algorithm for good finger positions for chord progressions. Although you have to carefully design your cost function (moving the finger from one place to another is costly)

I did implement the one for normal notes and the extension to chords shouldn't be that difficult but the execution is instantaneous because the sequence is not that long.

edit: https://www.youtube.com/watch?v=tp4_UXaVyx8 this lecture