"Eleanor Rigby" is a song by the Beatles, released on the 1966 album Revolver and as a 45 rpm single. It was written by Paul McCartney, and credited to Lennon–McCartney. The song continued the transformation of the Beatles from a mainly rock and roll / pop-oriented act to a more experimental, studio-based band. With a double string quartet arrangement by George Martin and striking lyrics about loneliness, "Eleanor Rigby" broke sharply with popular music conventions, both musically and lyrically. Richie Unterberger of Allmusic cites the band's "singing about the neglected concerns and fates of the elderly" on the song as "just one example of why the Beatles' appeal reached so far beyond the traditional rock audience".