Forrás: Keyboard Magazine March 2015. Gregg Rolie, The Rock Organ Legend Talks Rigs, Riffs, and the Road. Organ sheet music. 66 pages.
Fordítás: Billentyűzet Magazine március 2015. Gregg Rolie, The Rock Organ Legend Talks Rigs, riffek, és a Road. Orgona kotta. Piano kotta.