vocalizer vs player

vocalizer and player both are nouns.

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

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

Other hypernyms of vocalizer include instrumentalist, musician.

vocalizer (noun)	player (noun)
a person who sings	a theatrical performer
an organism that can utter vocal sounds	a person who participates in or is skilled at some game
	someone who plays a music as a profession
	a person who pursues a number of different social and sexual partners simultaneously
	someone who takes part in an activity