Beating-reed instrument and Double reed

Beating-reed instrument noun - A musical instrument that sounds by means of a vibrating reed.

Double reed and beating-reed instrument are semantically related. In some cases you can replace phrase "Double reed" with "Beating-reed instrument", this phrases are similar.

Double reed noun - A woodwind that has a pair of joined reeds that vibrate together.

Beating-reed instrument and double reed are semantically related. You can use "Beating-reed instrument" instead a noun phrase "Double reed".