Two days ago, I listened to the soundtrack to Meredith Wilson's
The Music Man. I kept thinking about it, and I realized something interesting about "Rock Island."
Near the end of the song, there's the lines
No, the fellow sells bands, boys bands, I don't know how he does it, but he lives like a king and he dallies and he gathers and he plucks and he shines.
(I'm not even going to try figuring out where the line breaks should be.)
In between "I don't know how he does it" and "but he lives like a king," there's a pause in the lyrics for maybe half a measure. I'd grown so used to that pause that it was only after stepping back and wondering why it's there that I realized how important it is.
The song occurs near the beginning of the movie (apart from the main title, it's the first number), and it serves the purpose of introducing the audience to Harold Hill via what the other travelling salesmen say about him. A good deal of the lyrics illustrate that the other salesmen are dubious about Hill's selling. Later in the movie, the audience learns that Hill sells instruments, instruction books, and band uniforms before skipping town; he never actually teaches the band to play or leads it.
The salesmen's uncertainty and wariness about (and even aggressive dismissal of) Hill is certainly present in the lyrics, but it's also present in that pause. Its presence after the line "I don't know how he does it" shows that the other salesmen can't figure it out. It's as if they need to stop in the middle of what they're doing and ruminate about it. Furthermore, the sudden lack of lyrics in a song that's otherwise pretty fast-paced and very meter-conscious (it's set to the rhythm of the train they're riding in) imparts a discomfort associated with the idea of Hill's selling. Listening to the song, you get the feeling that's something's missing there, in the same way that there's something lacking in Hill's veracity.