Bootleg Mixes ? Listen ...

Please elaborate

Simply, record labels known as 'bootleg' labels—releasing the original audio in a different mix.

Maybe. Tney were recorded and filmed so much its hard to tell. That Twist and Shout though, is the studio version. John's voice gives that away. Everybody knows the story of his voice and Twist and Shout.

4 October 1963, on Ready, Steady, Go!, with George playing his Rickenbacker 425.

Is that Mo?

これは素晴らしい♪ どうもありがとー