GM would be great but if I can add one instrument at a time I am happy for now.

I have a number of jazz midi files that sound pretty darn good just going thrugh the RD700. I still feel that great midi bass is possible with out much investment. The BIAB midi jazz bass parts lead very nicely and sound good thru a good sound source. They lack some of the live playing character and rhythmic figures (triplets) of the bass RTs. Sometimes the bass RTs get too far out for a given tune. I would like to see some of the RT bass players and electric players playing on a state of the art controller into midi. Let's make BIAB midi bass lines better then it is up to the the consumer to come up with the players to make the most of it.

I will concede that the brass is possibly too complex/expensive for now. As a bass player (upright and electric) I am confident that midi bass can be equal and occasionally better than RTs.