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:

Save/Load
New software mixing
Probably more… (will add later)

http://wiibrew.org/wiki/Harmonium