reed instrument vs beating-reed instrument

reed instrument and beating-reed instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
reed instrument	Yes	No	No	No
beating-reed instrument	Yes	No	No	No

As nouns, reed instrument and beating-reed instrument are synonyms defined as:

reed instrument and beating-reed instrument: a musical instrument that sounds by means of a vibrating reed

Other synonyms of reed instrument include reed.

reed instrument (noun)	beating-reed instrument (noun)
a musical instrument that sounds by means of a vibrating reed	a musical instrument that sounds by means of a vibrating reed