essentially juxtapose means side by side, but the piano too would be side by side by side, and I prefer "side by side by Sondheim", which incidentally gets it's name from "Side by side by side", a song from Company, not the band, but the show. Company, the show, also has a song called "You could drive a person crazy", which while it is a noble quest, it isn't my intention, that is just to provoke thought.