Don't miss the "8 Days a Week" Beatles movie on Hulu, if you can access it. Those live performance tapes from 60s have been lovingly restored, and the sound quality - although "of the time" - gets across how the band sounded in their touring days.
at Shea stadium, Ringo kept beat by watching Paul and Johns bums wriggle lol. It's amazing how in time and tune they were,with those harmonies when they couldn't hear themselves.