danceroom music vs ballroom music

danceroom music and ballroom music both are nouns.

Word	Noun	Adjective	Verb	Adverb
danceroom music	Yes	No	No	No
ballroom music	Yes	No	No	No

As nouns, danceroom music and ballroom music are synonyms defined as:

danceroom music and ballroom music: a genre of popular music composed for ballroom dancing

Other synonyms of danceroom music include dance music.

danceroom music (noun)	ballroom music (noun)
a genre of popular music composed for ballroom dancing	a genre of popular music composed for ballroom dancing