antiphon vs religious music

antiphon and religious music both are nouns.

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

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

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

Other hypernyms of antiphon include church music.

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