This composition is inspired by a famous electric guitar of the 1980's. The Kramer guitar that Eddie Van Halen customized and became epic. "5150" refers to the guitar, an album, and the band's concert tour in the 1980's. It also refers to California law. I believe the guitar's alternative nickname was "Frankenstein" because Van Halen had modified it extensively, including its jaunty, angular paint and tape job. The bold black lines were electrical tape.