Some artists never want to experience their work once it's made. U.S. film director Woody Allen famously never watches his own films; perhaps it's because he does not dwell on the past that he has been able to make a new feature nearly every year since 1969 while maintaining a trademark style.

Musicians, however, are not afforded the luxury of avoiding their artistic resume, mostly because the bulk of their earnings and reputations are generally tied to live performances. And during concerts, the past must be revisited.

Though a box set of 15 CDs and DVDs comprising his formative works, the "Early Years Box," will be released Sept. 1, Kazumi Watanabe says that he doesn't usually listen to his old records.