This is an iOs app that listens to the audio environment and tweaks the output to be a musical chord that is closest in harmony to the environment -- or plays a random melody that fits over the harmonic environment, so you can jam along with a song, just by hitting a screen or button. So if you hit lower on the screen it could be a lower inversion of the chord.
-- JesusHChrist, Apr 14 2013

random, halfbakery