Question: What was the contribution of the "quiet Beatle" to a song Ian McDonald described as having "rich and unusual harmonic motion"?
Sentence (from "George Harrison"): George Harrison, {'1': ", '2': ", '3': ", '4': "} (25 February 1943 – 29 November 2001) was an English guitarist, singer-songwriter, and producer who achieved international fame as the lead guitarist of the Beatles.
Relevant evidence: No