If you have the midi connections correct you should be able to use the cakewalk demo. You will need to go to Setup or somethink like that in Menu. Go to midi devices and assign the In and Out port. Go to Track View and hit the red record button and play a few notes. It should register on the right side of the window. I don't think the M1 is GM compatible so downloading songs from the net would do you little good unless they were recorded using an M1 and the patches that you are using.