Holy... carp, is this thread still going?
Saaaaaay... what about soundtracks? See, I make soundtracks at home in my computer. I can "play" virtual instruments through my computer and MIDI keyboard. Drums, bass line, background chords and a lead and you have a soundtrack. I use them at church to sing songs, so we won't have to have the (overworked) piano player learn new songs every time we want to sing one.
So whataya say? Would soundtracks be acceptable? It's not exactly a live instrument playing.