OK, here's your prob; the output of the MIDI track should be set to whatever instrument in reason you are trying to control (you should have already created an instrument on the reason rack). Make sure the MIDI track is also in record mode. It's really not necessary to bus to an audio track, unless you are actually trying to record the output from reason to an audio track, thus defeating the beauty, power and elegance of rewire/softsynth. There's a tutorial video on that you might want to watch. It's about Reason Adapted, but the procedure is the same. There are also tutorials on the .