John Lennon and Paul McCartney were each other’s favorite audience. That was plainly clear as the besotted Beatles bantered, bickered and obsessed over the 23 years they were friends and rivals. Ian ...

The breakthroughs and standards set on Revolver could fill a book. But even when The Beatles weren’t trying to best themselves - and Lennon would later refer to And Your Bird Can Sing as one of his ...