QTRAX, which originally launched back in 2002 but closed down due to avoid the risk of legal action, has relaunched today. It claims that users will be able to find and download between 25 and 30 million copyrighted music tracks, with the blessing of a large proportion of the music industry. "QTRAX is a magical and game-changing service that revolutionizes the way fans consume digital music," said QTRAX President and CEO Allan Klepfisz. Well, possibly not revolutionary. We've seen a shift towards "free" ad-supported music streaming and download services recently.