At first I was laboring under the impression that Chinese lyrics didn't rhyme. That turned out to be untrue - they don't rhyme in translation.

Serious music isn't listened to in a casual setting. You don't want to listen to that in headphones on the subway.

The adventure is when people don't know what they're doing at all. Like, I think that the first pop band to use synthesizers as their main instrument and take it seriously was probably Silver Apples. And they sure didn't know what they were doing, and they sure don't sound like anything else.

If the songs were in lumps, then you would expect to understand what was going on in the plot. Which is not a realistic goal. And also the instrumentation is different for every show, so it's more varied sonically. And people are free to make up their own plots, of course. There are pretty dense and complicated plots, and they're simple songs.

Yeah, except that when I write pop songs I have pretty strict constraints that I impose on myself. 69 Love Songs is a constraint. That the titles have to begin with "I'"s is a relatively strict constraint. Charm of the Highway Strip is all travel songs. And I am free to change the plot slightly to accommodate something that happens to rhyme conveniently.

Popular music of the last 50 years has failed to keep in step with advances in musical theater, namely Stephen Sondheim. But the two have grown apart so that popular music is based more than ever on a rhythmic grid that is irrelevant in musical theater. In popular music, words matter less and less. Especially now that it's so international, the fewer words the better. While theater music becomes more and more confined to a few blocks in midtown.

If you start out with a song sounding like Britney Spears, and you end up with a song sounding like Pauline Oliveros, you'd better have pretty good liner notes explaining what on earth you mean.