I agree that the MIDI Supertracks are very different from the linear playback of a sequencer, but I am not sure that anything significantly new has been introduced. Isn't this the same concept or "engine" behind the soloist? Specifically, isn't this what was done several years ago when the premium soloist disks 12-15 were introduced featuring the solo phrasing of Jeff Lorber and Andy Laverne? Whatever it is, I really appreciate any attention paid to improving the MIDI capabilities.