Just lol. It "virtually" plays MIDIs that you open it with.
(https://rmrk.net/proxy.php?request=http%3A%2F%2Fimg714.imageshack.us%2Fimg714%2F2224%2Fmidijam.th.jpg&hash=56492a84d47289145799cf7b38d55ed32212176d) (http://img714.imageshack.us/img714/2224/midijam.jpg)