1-C. They turned out to be from an out-of-tune piano, which was probably played by George Martin, the Beatles' producer.They turned out to be from an out-of-tune piano, which was probably played by George Martin, the Beatles' producer.
2-C. The beginning of the Beatles' song "A Hard Day's Night" has puzzled rock fans for forty years.The beginning of the Beatles' song "A Hard Day's Night" has puzzled rock fans for forty years.