i'm thinking "Whole Lotta Love". the B-D bits of the riff hardly constitute chords in the tonal harmony or arrangement senses. "A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it." -Max Planck ------------------------------------------------------------------- Michael Giffin giffin at colorado.edu Department of Biochemistry http://www.giffin.us/ University of Colorado-Boulder 303-492-4503 -------------------------------------------------------------------