“Kreen Akrore” is the final track on the McCartney album. After watching a TV documentary about Brazil’s indigenous Kreen-Akrore tribe, McCartney was inspired to compose an instrumental track that would capture “the feeling of their hunt”.
The next day, after he recorded the drum sounds, McCartney and wife Linda did “animal noises”, including creating stampeding sounds with the aid of a guitar case. The two built a fire in London’s Morgan Studios, but only the sound of twigs breaking made it onto the final cut. Probably the most unusual addition was the sound of a bow and arrow, which later led McCartney to say that he played “bass, drums, acoustic guitar, lead guitar, piano, mellotron, organ, toy xylophone, and bow and arrow” on the album.