George Martin: It was always understood that the album would be like nothing the Beatles had done before. It would be honest, no overdubbing, no editing, truly live… almost amateurish. When John brought in Phil Spector he contradicted everything he had said before. When I heard the final sounds I was shaken. They were so uncharacteristic of the clean sounds the Beatles had always used. At the time Spector was John’s buddy, mate and pal… I was astonished because I knew Paul would never have agreed to it. In fact I contacted him and he said nobody was more surprised than he was.