We lost our drummer. We want to use a pre-programmed drum track for our performances. The end result should have a four count-in, then play the simple pop song with simple beats but with realistic breaks, fills, and ending. We want an effective replacement for a simple but real drummer. We can start off with one song. I will send you a recording song with drums to use as a template. We are very flexible on format. Do you charge by the song?