A Reason Looper could be a mind blower. Live guitar or vocal in, plus adding synths, drums, etc, with live subtracting of individual layers, live changing of length by bar or beat, adding automation like filter sweeping into individual layers, etc. Wow. Like a mini super-tweakable sequencer. I sort of think it could almost be done now live, but you would have to be very skilled, using highlight-option drag and moving the loop points. Maybe a marriage of Reason with Figure but with a lot more knobs (maybe one for start at bar number x and one for end at bar number y).
John - San Francisco www.soundcloud.com/john-richards
Reason 7; 27" iMac; Akai MPK88; Konnekt6; Amplitube; Miroslav Gold; Fender Strat, Tele, Jazz Bass, Blues Jr III, SCXD; Spector Bass; Agile Les Paul; Ergo Bass; Zero-G Total Rex; Trident A-Range; RE-2A; Vermilion; Creme; Revival; Futurator; Glitch; Logic Studio 9; Reaktor 5.8.