An enjoyable evening. Cool drinks are served, the atmosphere is relaxed, and a subtle, swinging piano sound fills the air. You can hear a Boogie Woogie tune, but the melody somehow reminds you of "Black Sabbath." After that, a Bossa Nova tune that strikingly sounds like "Megadeth," only much more laid-back. It's not until the funky-bluesy riff of "Rage Against The Machine" that it becomes clear who's at the keys: George Heinle, Germany's toughest bar pianist.