Synthesia LLC

Synthesia LLC, or simply Synthesia, is a piano keyboard trainer for Microsoft Windows, IOS, Mac OS X, and Android which allows users to play a MIDI keyboard or use a computer keyboard in time to a MIDI file by following on-screen directions, much in the style of Keyboard Mania or Guitar Hero.

History
On March 25, 2006, Synthesia joined the channel. 9 months later, Synthesia was started by Nicholas Piegdon, and was originally named "Piano Hero".