User blog comment:Judgementaeon/One of the Nice Little Features I've Always Enjoyed with the Music Scores.../@comment-10380701-20141206014657

Tvtropes actually mentions about it on their RWBY Character pages. Cinder apparently has one as well. The Food Fight battle is essentially a bunch of leitmotifs cobbled together formed from both RWBY and JNPR's themes with a few original tunes mixed in.

As I'm an illiterate when it comes to music, I don't actually notice it. >_<