I have a Yamaha 293 with USB MIDI out which I use to select strings, woodwinds, horns, piano, etc, to compose clips, into the computer (Dell running windows 7 with a soundcard and driver installed for the Yamaha), however, I can't get them to play at the same time without hearing them play back a second later than I play them. Consequently, they are not in synch with each other and I don't know how to correct them in edit mode.