 The band introduced new instrumentation into their basic sound, as a way to illustrate the more nuanced style adopted by Lennon in his lyric writing.This was especially evident in the range of percussion instruments, which, mainly played by Starr, included the band's first use of timpani, African hand drums and chocalho.According to MacDonald, the Beatles adopted a "less-is-more" approach in their arrangements; he cites "No Reply" as an example of the group beginning to "master the studio", whereby doubling basic parts and the use of reverb lent the performance "depth and space".