Profile of Berlin-based Ableton, whose music production software changed the way recordings are produced and how DJs perform by eliminating cumbersome equipment (Steve Knopper/Billboard)

Steve Knopper / Billboard:
Profile of Berlin-based Ableton, whose music production software changed the way recordings are produced and how DJs perform by eliminating cumbersome equipment  —  Gerhard Behles and his partners wrote the code that makes modern pop sing — and makes investors drool.  But they're not selling.