minstrel vs vocalizer

minstrel and vocalizer both are nouns.

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

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

Other hypernyms of minstrel include singer, vocaliser, vocalist.

minstrel (noun)	vocalizer (noun)
a singer of folk songs	a person who sings
a performer in a minstrel show	an organism that can utter vocal sounds

minstrel (verb)	vocalizer (verb)
celebrate by singing, in the style of minstrels