Thanks for the reply. Yes, I am a guitarist. The Hi-Q does sound a lot better than standard midi, but with the BiaB version I amusing, I only have one option for jazz guitar. I will do a little searching to see what else I can find, but to be honest, I can probably live with the BiaB midi melody track.

I use the backing track to learn both rhythm and lead. Once I get comfortable with the lead, I can mute that and just use the rhythm to noodle around a bit.