Final mixes of songs such as "Junk" and "Teddy Boy" were completed at Morgan Studios along with the remaining tracks on the album. During this process, "Hot as Sun" and "Glasses" were segued into a medley, ending with a snippet of McCartney performing the song "Suicide" on piano. Unacknowledged in the track listing for the album, "Suicide" was a composition that he had intended for Frank Sinatra to record. He also edited two separate instrumental pieces into one for "Momma Miss America"; McCartney can be heard shouting the first portion's original title, "Rock 'n' Roll Springtime", on the recording.