In the song's middle segment, McCartney recalls his younger years, which included riding the bus, smoking, and going to class. The recording includes two passages of orchestral glissandos that were partly improvised in the avant-garde style. Lennon's lyrics were mainly inspired by contemporary newspaper articles, including a report on the death of Guinness heir Tara Browne. Credited to Lennon–McCartney, the verses were mainly written by John Lennon, with Paul McCartney primarily contributing the song's middle section. ' A Day in the Life' is a song by the English rock band the Beatles that was released as the final track of their 1967 album Sgt.