Please forgive my stupidity here, I am just a trumpet player. But, I am trying to create a accompaniment CD that I can practice my horn with. I want to take a pre-recorded Chris Botti CD and remove his trumpet track so that I can play along with the CD without his trumpet being heard. Is this possible? Alesis makes a little machine/CD player that removes the vocal track from most CD's, so, I bought one and tried it. But, it didn't work at all. Anyone know of any other options or methods??