The device looks somewhat minimal, and leaves a fair amount of space in the case; I imagine it could be expanded to less-minimal implementations. I imagine it wouldn't be too hard, in theory, to implement a sample-based music player (of the tracker/chip-tune variety) in that form factor, and provide it with enough algorithmic-composition logic to semi-randomly reconstitute/transpose/harmonise beats, basslines, chords and melodies into something resembling music.