Because it's a bit off beat I thought I mention it here.
Others most likely know but I just found that in RB I can enter my chords, go to tracks, choose a track and style and generate a midi file for channel 1 piano,guitar,etc, nothing new so far but going to the next track I can change the style and create a midi pattern based on that style which is different from channel 1 on channel 2 for an instrument based on the channel 2 style and so on.
It might be interesting to choose 2 different piano styles to compliment each other like a Dave Brubeck jazz on channel 1 with a mellow pop(guitar or piano) on the other channel.
It also can get nasty very quickly with the wrong choices too, but with a cut and paste you could use just what works.
I was just noodling around and found this so it's new to me, maybe not to others.
Wyndham