1963: Music critic William Mann praised John Lennon and Paul McCartney as the “outstanding English composers of 1963”. Writing in The Times, Mann drew attention to the “chains of pandiatonic clusters”, “flat submediant key switches” and “major tonic sevenths and ninths” in the Beatles’ music. He detected “melismas with altered vowels” in “She Loves You” and an “Aeolian cadence” at the end of “Not a Second Time”. All of which presumably went clean over the heads of the group’s screaming, swooning fans.
Source: Dominic Pedler, The Songwriting Secrets of The Beatles (2003), chap. 5