Pink Floyd's contributions to the album were recorded in November and December 1969, after the release of Ummagumma. "Come in Number 51, Your Time Is Up" is a re-recording of "Careful with That Axe, Eugene," originally released as a b-side in December 1968. "Love Scene (Version 4)" is a Richard Wright solo piano composition. "Country Song" (also known as "The Red Queen") is a ballad filled with chess metaphors. "Unknown Song" (also known as "Rain in the Country") is a relaxed instrumental. "Love Scene (Version 6)" is a bluesy instrumental. A track entitled "Fingal's Cave" and another called "Oenone" were recorded but did not appear on the finished album.