”Look,” he says quietly, slowly, ”at a certain point, something is musical. And beneath that point, it’s not musical. You can’t sing out of tune, you can’t play out of rhythm, you can’t play your instrument that isn’t tuned, the tempo has to be right. I don’t know, is that perfection? I don’t say that once you reach that point, you must keep going to the sky — although I do think, Hey, you got this far, why don’t you see how far you can go? If you want to call that perfection, O.K. But it’s not anywhere near perfection, it’s just musical.”  Paul Simon