A number of short, orchestral segues between songs were newly written for the project by Wilson, Parks, Sahanaja, and Paul Mertens. They also wrote a string arrangement for the second part of "Surf's Up", an idea that Wilson said he originally intended for the piece. Some of the titles of the original tracks were changed, including "Do You Like Worms?", which was renamed "Roll Plymouth Rock". Wilson explained that this was because "we wanted something a little more appropriate". When Wilson was presented "Mrs. O'Leary's Cow", he began humming the melody from "Fall Breaks and Back to Winter", which was then incorporated into the piece.