The songs usually advance the plot or develop the film's characters, but in some cases, they serve merely as breaks in the storyline, often as elaborate "production numbers."
Lagu-lagu biasanya plot maju atau mengembangkan karakter film tersebut, meskipun dalam beberapa kasus mereka melayani hanya sebagai istirahat dalam alur cerita, seringkali sebagai rumit "angka produksi".