Justin McElroy says, "in the history of disney animated movies there have been exactly 18 types of songs, and i'm going to tell you about each of them". And then he does, with examples from the 252 songs (excluding those under 30 seconds long) from Disney's animated films. There would be more if you included live-action films like Mary Poppins, and they could also be categorized in the same way. Categories include "I'm the Villain," "I want," "Montage," and "Cheer up, Kid!" McElroy summarized his research with the table of elements you see above. The table is organized by type and color-coded by era. See it full-size here. -via Metafilter