Was thinking through these stories or novels or whatever and realizing that there are (for the most part?) interludes as far as the chapter breaks are concerned.
Last 4th of July will have more story-driven pieces because of the nature of Barry's livelihood: Mrs. O'Leary's Cow, interference at Fantasy Forest and even the dream sequence at the beginning of the story overall.
Not too sure about Homelands yet, though I like the scope of the book being slightly more self-contained, at least within the confines of the immediate area.
Metro is another of those Ogethan-centric tales and I think it'll be more solidified with song, especially the Superman bits.
To be honest, the mechanics of the book will come along when they need to. Maybe I'm thinking too broadly? Maybe I'm letting things get in the way?
Just as the thoughts come naturally, organically, maybe that's how these interlude-y things should. A story might get some place that a song or a quote might not be able to reach, let alone mesh within the fabric of the story. It's going to need to flow to have the reader's experience it, live it as best as possible.