jazzman vs syncopator

jazzman and syncopator both are nouns.

Word	Noun	Adjective	Verb	Adverb
jazzman	Yes	No	No	No
syncopator	Yes	No	No	No

As nouns, syncopator is a hyponym of jazzman; that is, syncopator is a word with a more specific, narrower meaning than jazzman:

jazzman: a musician who plays or composes jazz music
syncopator: a musician who plays syncopated jazz music (usually in a dance band)

jazzman (noun)	syncopator (noun)
a musician who plays or composes jazz music	a musician who plays syncopated jazz music (usually in a dance band)