not exactly what you want, but i must recommend freewheeling, a live looping program. after two years lurking on this list, the video tutorials made for it convinced me to buy an extra computer and m-audio card. the program has blurred most of my distinctions between improv, composition, practice, performance, work, play, live, prerecorded. -- dan easley (dan(a)burntpossum.com) prabob