The 2-inch 16-track master tape containing rhythm parts and scratching needed to be transferred to 24-track 2-inch in order for Hancock to work with it at his home studio. Laswell and Bisi took the tape to RPM Studios in Greenwich Village, but instead of simply transferring the format, they added some extra sounds, especially a stab of guitar taken from a Led Zeppelin song on the album "Coda". Using the repeat hold function of a Lexicon Prime Time digital delay, they attempted to capture a Led Zeppelin snare drum sound, but a moment of inattention resulted in the guitar stab, which Laswell found better suited his purpose.