Protect the world of harmony from the monstrous hordes of dissonance with the power of music! Play a real guitar or strum a screen guitar to defeat the forces of discord!

There is a world woven from music, whose very air stirs alive with melody: Harmony. Beautiful and wondrous is this world, yet its very existence is imperiled as monsters of dissonance have come to conquer and engulf everything in noise and cacophony. A lonely hero, armed only with a guitar and his courage, fights a desperate battle to save the world from this dissonant horde.