ITV News Correspondent Nina Nannar reports
George Martin "saw the real talent in John Lennon and Paul McCartney", Beatles biographer Philip Norman said as he paid tribute to the star.
Martin, who signed the Beatles, died yesterday aged 90. He is survived by his wife Judy and four children.
Mr Norman told ITV News: "He devoted himself to making it sound as good as it could. He became a celebrity producer although he didn't want to be a celebrity."