Sir Paul McCartney has talked candidly about the depression he suffered after The Beatles broke up, confessing he considered giving up music altogether. Speaking to BBC Radio 4's Mastertapes, he said he had been at a loss when the band fell apart in acrimony in 1970. "It was difficult to know what to do after The Beatles. How do you follow that?" ... The Beatles officially split in 1970 with the release of Let It Be, but the seeds of their demise were sown a year earlier, when the band appointed Allen Klein as their manager, against Sir Paul's wishes...