Harmonium is, to put it plainly, a musical doodling tool. The user can manipulate notes on a 16×16 grid to create melodies within a pentatonic scale. On top of this already addictive concept, you can bring things to life by enabling Conway’s Game of Life! It’s not the easiest thing to explain, so just try it!

Changes:

Implemented a few features I’d like feedback on before implementing the rest and releasing v1.
New features:
Adjustable tempo
Adjustable volume
2 new GoL modes
Grid shifting
64 grid history
New timing mechanism means even playback

http://wiibrew.org/wiki/Harmonium