The Beatles respected their audience,

The thing about Beatles music is that everybody knows it. If you play Beatles music, the audience is already there, and they're waiting to be entertained by you. All of a sudden, they're transformed to another place.

First single. Fucking brilliant. Perhaps the most fucking brilliant song ever written. Because they nailed it. That’s what everyone wants. Not 24-7 hot wet sex. Not a marriage that lasts a hundred years. Not a Porsche or a blow job or a million-dollar crib. No. They wanna hold your hand. They have such a feeling that they can’t hide. Every single successful love song of the past fifty years can be traced back to ‘I Wanna Hold Your Hand.’ And every single successful love story has those unbearable and unbearably exciting moments of hand-holding. Trust me. I’ve thought a lot about this.

About "I wanna hold your hand" by The Beatles

It barely took any time at all (for him to fit in). We knew he would be the exclamation point on all the players we have.

What you will hear in his words is that Brian was not only the musician who was most influential in driving The Beatles in a more artistic and advanced direction musically, but that the 'Sgt. Pepper' album in particular was a direct outgrowth of Brian's productions of 'Pet Sounds' and 'Good Vibrations,'

We were moving the ball well, cutting and making good passes. We weren't out of control at all and it just opened up for me.