 Now, recording technology in the early 60s didn't allow for mistakes. If you had 10 to 15 players in a room, they all had to nail their parts. There were no computers helping you punch in. If you made a mistake, they would just start from the beginning and go for it. Glenn Campbell described it like this. He said, it was like playing with Michael Jordan, but everybody in the room was a Michael Jordan. One of these groups that had their instruments stripped from them at the door were the Byrds when they recorded Mr. Tambourine Man. Here's Roger McGuinn telling us the story.