beating-reed instrument vs reed

beating-reed instrument and reed both are nouns.

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

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

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

Other synonyms of beating-reed instrument include reed instrument.

beating-reed instrument (noun)	reed (noun)
a musical instrument that sounds by means of a vibrating reed	a musical instrument that sounds by means of a vibrating reed
	a vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it
	tall woody perennial grasses with hollow slender stems especially of the genera Arundo and Phragmites