Briefly, the song attempts to deal with a particular event that’s important to the piece, but not particularly dramatic. Sondheim even calls it a “song about nothing” (which is very interesting in these post-Seinfeld times). What’s interesting about the song is the reciter’s setup line: “No one knows what happened in the treaty house.” The solution is to tell the story from three points of view: 1) An old man who remembers watching from the top of a tree when he was a boy; 2) That same old man as a 10-year-old boy; and 3) A soldier hiding under the floorboards of the treaty house.

The old man and the boy report what they’ve seen. The soldier reports what he’s heard. It’s a brilliant use of time and space in a theatrical moment.

The first video below is a very young Frank Rich interviewing Sondheim and his collaborator John Weidman in Sondheim’s house, presumably during the (extremely brief) run of the original Broadway production. In this video discusses in depth how the song came about and why he loves it so much. He also talks about the repetitive accompaniment figure, and how it came about.

The second video is a continuation of the first, where Sondheim accompanies the four cast members involved in a reading of the song.

Now, here’s the song as it looked in it’s full production.

Just a personal note about all this. I’m literally kvelling that YouTube has made it possible to see all of this. I had once before seen the second video, with the actors in Sondheim’s house, at a Sondheim-kook event here in San Francisco many years ago, but I did not know of the existence of the first part. I used to think I’d seen every Sondheim interview that exists on video. I also have to say that it’s really fun to see what the inside of his house looks like (or at least what it looked like in 1976).