Aside from the ambient introductory piece "Twenty Years On", all the material was taken from Curved Air's first three albums, with a particular emphasis on the debut album. Most of the running time is devoted to songs from the debut album.
The introductory track, "Twenty Years On", was taken from an audience recording on a mono cassette recorder, and hence is of exceptionally poor sound quality. Since the album was compiled chiefly for fans of the group, it was decided that it would be better to include a low-quality recording of the intro than none at all.
Track listing
"Twenty Years on (Intro)" (Francis Monkman, Darryl Way) – 4:11