Real Gone Music is kicking off its summer slate with another batch of eclectic titles. Tomorrow, Real Gone and Second Disc Records release Liza Minnelli's Live in New York 1979 on CD and vinyl as well as the soundtrack to Melvin Van Peebles' groundbreaking comedy Watermelon Man. But that's not all. Real Gone also has another soundtrack and two hard rock LPs coming your way. First, a refresher on Watermelon Man. In an extraordinary career spanning seven decades, director and "godfather of