Talk:Celestia's Ballad/@comment-15629929-20140509175752/@comment-4531340-20140528221342

Dictionary.com definition for ballad:

1. any light, simple song, especially one of sentimental or romantic character, having two or more stanzas all sung to the same melody.

5. a sentimental or romantic popular song.

(Emphasis added by me) I'd say based off those two definitions, ballad fits (especially the first one).