Which musical instrument is Paul McCartney famously associated with?

Paul McCartney is famously associated with the bass guitar. He became the Beatles’ bass player in 1961 after Stuart Sutcliffe left the group, and his melodic, highly active bass lines became a defining part of the band’s sound.

McCartney helped transform rock bass from a mostly supportive role into a more expressive songwriting voice. His playing on songs such as “Something,” “Rain,” “Paperback Writer” and “Come Together” often moves independently from the vocal melody while still strengthening the song’s harmony and rhythm.

Bass guitar is the canonical quiz answer even though McCartney is a multi-instrumentalist. He also played acoustic and electric guitar, piano, keyboards and drums, sometimes performing nearly every instrument himself on recordings. His early musical training included piano and guitar, but the bass became his signature instrument through his years with the Beatles and later Wings.

A common mix-up is assuming that the lead singer or principal songwriter must have played guitar. In McCartney’s case, his role as bassist was central to his public identity, songwriting partnership with John Lennon and reputation as one of popular music’s most influential bass players.