Ray Parker Jr. is known for "The Other Woman," songs with Raydio like "You Can't Change That," and of course "Ghostbusters." But his roots in Detroit meant he was playing clubs in his teens and was lead guitarist for Stevie Wonder on his 1972 tour with the Rolling Stones. Parker Jr. wrote hits for Rufus & Chaka Khan and played with everyone from Diana Ross and Barry White to The Carpenters and Boz Scaggs. He has a new documentary coming out and his current tour means a trip to Milwaukee, giving Eric an opportunity to talk with him about his remarkable career.