Todd Rundgren is widely considered a cerebral rocker, but tonight he takes it a step further: He lectures at DePauw University, the high-toned private school in Greencastle.

His topic: “Music, Technology and Risk-taking.”

The talk is at 7:30 p.m. in the Kresge Auditorium of the Green Center for the Performing Arts. It’s free, and open to the public.Though known chiefly for his mellow 1970s radio hit “Hello, It’s Me” and his playful “Bang on the Drum all Day,” Rundgren has been a multi-faceted innovator as both a musician and producer during a career that has spanned 40 years.In recent years Rundgren and his band have played Indianapolis once a year. Tonight’s lecture follows Monday’s headbanging, guitar-wall-of-sound concert at the Vogue.