It was Paul Oneil, the producer of the metal band Savatage that came up with the concept. I saw them in Atlanta this past November,and thought I enjoyed the show as always,I won't be going back. There was a violin player onstage with the guitarists that never took a solo,wasn't introduced as a member of the band,and whos left hand fingers never moved on the fingerboard.He was faking it. As a classically trained musician in orchestra since 71,and having played in rock bands since the late 70's,I was offended that they had someone on stage pretending to play an instrument. So they lost me as a fan.