One song that was recorded during the rehearsal, "Cosmic Slop," was released in 1976 on the Funkadelic album Hardcore Jollies. Another song from the rehearsal, "Tear The Roof Off The Sucker Medley," was released in 1977 on Parliament's Live: P-Funk Earth Tour, bolstered by canned audience responses. These two tracks were not included on the Mothership Connection Newberg Session album. The two songs in the final track on Mothership Connection Newberg Session, "Maggot Brain"/"Good To Your Earhole," were recorded during the 1993 P-Funk All-Stars concert in Japan. Despite being heavily sought by collectors, Mothership Connection Newberg Session has never been released outside of Japan.
