soprano vs vocalizer

soprano and vocalizer both are nouns.

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

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

Other hypernyms of soprano include singer, vocaliser, vocalist.

soprano (noun)	vocalizer (noun)
the pitch range of the highest female voice	a person who sings
the highest female voice; the voice of a boy before puberty	an organism that can utter vocal sounds
a female singer with the highest vocal range of all the voice type

soprano (adjective)	vocalizer (adjective)
having or denoting a high range