I am strictly a home player that wants to sound better (Who doesn't)! What are the best choices for backing tracks (I think that's what they are called). I would like to take the lead, or play along. I am looking for a "fuller" sound than I can generate by myself

Should I be looking for smf/midi files, MP3's, Karaoke, or what? I can input audio from an external source (tape, ipod etc) or use MIDI from a disk.

Where should I look to try some out?

Thanks for helping out.

Bill