"Tones" (also known as "Tune X") was actually a working title for an entirely different composition recorded by Carl Wilson during Smile sessions.

"Surfin' U.S.A." is present in complete form on Melt-Banana's MxBx 1998/13,000 Miles at Light Velocity (1999).

Secret Chiefs 3's cover versions of "Good Vibrations" and "Heroes and Villains" are on their compilation Path of Most Resistance (2007).

and "Little Pad" were later included as bonus tracks on reissued releases of Music from the Unrealized Film Script: Dusk at Cubist Castle (1996).

Short Hair Front and Feelds were short-lived bands seemingly led by the album compiler Seiji Morita, and he is credited as arranger for their contributions "I'm Waiting for the Day" and "I Just Wasn't Made for These Times".