What are backtracks? ----------- Usually, its the harmony part that is electronically generated while you play the lead. This concept has been used for many decades by musicians of all types and genres. ----------- The downside to backtracks are, you better be pretty good on the horn because it is just you and no one else. You can end up sounding very professional or crash quite hard. If you decide to use backtracks, make sure you know your parts!