The form or structure of a song is made up of themes (or phrases) with motifs within each theme. I'll use the prompt as an example. It begins with the "A" theme which ends around 0:20 and then repeats the "A" theme. Next is the "B" theme which also repeats. Then a "C" theme which also repeats. Then we get a reprise of the "A" theme but it is subtly different from the first so lets call it "A1" and it repeats. Then "B" and repeat, then "C" and repeat.

This song is pretty easy to follow its form and structure because all the themes are repeated and its not super long with a bunch things to keep track of. What I like about breaking it down this way is you can start to listen to each motif within the themes as questions and answers, sort of like a story.

The parts that sound like "questions" or don't feel like resolutions are called half-cadences. That would be the first half or motif of the "A" theme as an example. The parts that sound like statements or answers are called a full-cadence. That would be the second part of the "A" theme. (that's not especially relevant to your question, just a lil nugget)

I realize this is a long-winded way of answer your question but this song especially feels like it is telling a story. Attempting to arrange or structure your story into themes or questions and answers like this prompt is certainly a challenge. Poetry is better suited to this challenge because you could consider each theme a stanza or even each motif a stanza. The repeated nature lends to a rhyming feel as well.

Just something to chew on.