Long sections of song/sex interspersed with short snippets of plot. Naturally, the plot only exists insofar as it moves us from one song/sex scene to the next song/sex scene.
Err...this isn't my original idea. I heard it while I was in college, but I don't remember whose theory it was! I've been poking around a bit and can't find anything. Does anyone know the theorist or author in question?