antiphony vs church music

antiphony and church music both are nouns.

Word	Noun	Adjective	Verb	Adverb
antiphony	Yes	No	No	No
church music	Yes	No	No	No

As nouns, church music is a hypernym of antiphony; that is, church music is a word with a broader meaning than antiphony:

antiphony: a verse or song to be chanted or sung in response
church music: genre of music composed for performance as part of religious ceremonies

Other hypernyms of antiphony include religious music.

antiphony (noun)	church music (noun)
alternate (responsive) singing by a choir in two parts	genre of music composed for performance as part of religious ceremonies
a verse or song to be chanted or sung in response