madrigalist vs vocalizer

madrigalist and vocalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
madrigalist	Yes	No	No	No
vocalizer	Yes	No	No	No

As nouns, vocalizer is a hypernym of madrigalist; that is, vocalizer is a word with a broader meaning than madrigalist:

Other hypernyms of madrigalist include singer, vocaliser, vocalist.

madrigalist (noun)	vocalizer (noun)
a singer of madrigals	a person who sings
	an organism that can utter vocal sounds