Winner of the Assembly Demo Party 2006, Frets on Fire is a music video game that uses the keyboard to play along with scrolling on-screen musical notes to complete a song.
The player has to imagine the keyboard as a guitar and pick it up to play.
One hand will be used to press the ‘frets’ (F1 to F5) and another will be used to press the ‘picks’ (Shift or Enter).
Colored markers that appears are to be played by pressing ‘frets’ of the correct color and ‘picks’ at the correct moment.
There are also song editors and tutorials featured in the game.
This game is really addictive.
Download Frets on Fire here ... http://fretsonfire.sourceforge.net/
Source: Free Online Fun