Synthesia - A fun way to learn how to play the piano.
Cursor Dance Party - A dance party, for your cursor
Piano From Above - Piano From Above is a program that turns learning the piano into a videogame.
CursorFX - Create custom mouse cursors with CursorFX.
Playground Sessions - Online piano learning game.
Mouseposé - Mouseposé is the indispensible mouse pointer highlighting tool (aka "virtual...