JAM sessions(2007)

A guitar-playing Nintendo DS game.The Nintendo DS touch screen represents a guitar's strings and the D-pad / buttons become the fingered chords. By "strumming" on the virtual strings you'll play the chord that you've selected on the D-pad. The tool recognizes both up and down strums at half and full velocities, and you'll hear the subtle changes to the chord in the different ways to play them.