vocal vs communicatory

vocal is a noun but communicatory is not a noun.

Word	Noun	Adjective	Verb	Adverb
vocal	Yes	Yes	No	No
communicatory	No	Yes	No	No

vocal (noun)	communicatory (noun)
music intended to be performed by one or more singers, usually with instrumental accompaniment
a short musical composition with words

vocal (adjective)	communicatory (adjective)
having or using the power to produce speech or sound	able or tending to communicate
relating to or designed for or using the singing voice
given to expressing yourself freely or insistently
full of the sound of voices