I have looked a lot. So I have this song in RB, I have track 13 a midi track and in there I have sforzando x86. I can start recording, play my casio keyboard, and hear the piano sounds and see the midi notes on the track, and then it asks me if I want the midi on track 15, and so I say yes and there it is.

But why won't it let me change the instrument to some other sforzando-available instrument?

Thanks,
Marty