Too bad for the dev time, because otherwise I really enjoy this! The sound of the notes is also really pleasant, and the music coming out sort of makes sense, even if I assume it's randomly generated :D.
Thanks! Yeah the backing music is 12 bar blues, and the notes you hit are random notes from pentatonic scale for the chord that background is playing.
I might put some more time into this at another point and improve the music algorithm and generally add some fit and finish