How much can you do with two voices? You can sing thirds or you can sing fifths or you can do a background harmony.
Paul SimonI sort of recognize it, as opposed to shaping it. Oh, that's a good idea, that's a good line. I wonder where I can use that. And when you get into a rhyme group like 'not,' you got a lot of rhymes, you got a lot of choices. The more you do it, the luckier you get.
Paul Simon