Conversation so far:
What were the orgins of The Beatles' Free as a Bird song?
Paul McCartney, George Harrison and Ringo Starr wanted to record incidental background music for The Beatles Anthology project.
What did The Beatles' realize about Free as a Bird?
Paul McCartney, George Harrison and Ringo Starr realized that they wanted to record new music incorporating John Lennon's unreleased recordings.
What kind of sound is the song free as a bird inspired by

Question: why is it called free as a bird
Self-contained rewrite: why is the 1995 song by the Beatles called free as a bird