Asher remembers when Paul McCartney and John Lennon played “I Want to Hold Your Hand” for him for the first time. “I thought, am I losing my mind, or is this one of the best songs I've ever heard in my life?” McCartney, who was dating Asher’s sister at the time, was living with his family. A new documentary, ‘Peter Asher: Everywhere Man,’ chronicles Asher’s life in the record industry. He spoke with Terry Gross about his own band in the British Invasion (Peter and Gordon), discovering James Taylor and launching Linda Ronstadt.