antiphon vs church music

antiphon and church music both are nouns.

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

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

antiphon: 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 antiphon include religious music.

antiphon (noun)	church music (noun)
a verse or song to be chanted or sung in response	genre of music composed for performance as part of religious ceremonies