older ♪ ♪ then we wouldn't have to wait so long ♪ >> music in the '60s was like any great art movement. the greatest practitioners of it pushed one another to be better. >> dub the mike on the piano quite low. >> in the studio, the beatles' natural creativity was sort of brimming over, and george martin was a brilliant collaborator and champion of that. >> run back the tape, please, would you? >> you can slow down or speed up the tape, you can put in backwards stuff, you can put in electronic sounds, or you can just be live. >> something happens on air, i couldn't tell you what because we have a special man who sits here and goes like this, and the guitar turns into a piano or something, you know. and then you may say, why don't you use a piano, because the piano sounds like a guitar. ♪ we're sergeant pepper's lonely hearts club band ♪ >> there were fm radio stations that did nothing but play "sergeant pepper's lonely hearts