Do coming of age movies abuse their soundtracks?

While watching The Big Chill I noticed that the filmmakers relied heavily on their soundtrack to create a sense of chemistry between the characters. The premise of the film is that all these friends from way back are reuniting, seeking the fun and good times of yore. The scenes were punctuated by one big hit after the next. The characters would say something inane to each other and then a monster, feel-good hit would start blasting. It's like they couldn't communicate the magical feel-good vibe of best-friendship to the audience with dialogue or acting alone. So they turned to music to get the job done.

Sometimes the music felt a bit tacked on. Must one conclude that the dialogue or acting was lacking, or is it just that, in certain cases, only music will do?

Tough call.

The acting was excellent in this movie, but the screenplay could have been better. It could have shown how these characters find love and friendship again without turning things into an orgy. And sometimes the dialogue left me scratching my head. I wondered how the characters could stand each other . . . or why they didn't get bored out of their minds.

That said, as my musical theater instructor once explained: "Sometimes emotions get so big, that all you can do is burst out into song."