Piano: The piano provides the main accompaniment to Lennon's vocals. He played a Steinway Model Z concert grand piano.
Drums: Ringo Starr played drums on the track, using his Ludwig Super Classic drum kit.
Bass guitar: The bass guitar, played by Klaus Voorman, provides the low-end support to the song's arrangement.
Synthesizer: a synthesizer created the ethereal string-like sounds and added texture and depth to the track.
Harmonica: Lennon played a harmonica on the song, adding a touch of folk and blues influence to the track.