shepherd's pipe vs recorder

shepherd's pipe and recorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
shepherd's pipe	Yes	No	No	No
recorder	Yes	No	No	No

As nouns, recorder is a hypernym of shepherd's pipe; that is, recorder is a word with a broader meaning than shepherd's pipe:

shepherd's pipe: a small fipple flute with four finger holes and two thumb holes
recorder: a tubular wind instrument with 8 finger holes and a fipple mouthpiece

Other hypernyms of shepherd's pipe include fipple flute, fipple pipe, vertical flute.

shepherd's pipe (noun)	recorder (noun)
a small fipple flute with four finger holes and two thumb holes	a tubular wind instrument with 8 finger holes and a fipple mouthpiece
a small bagpipe formerly popular in France	equipment for making records
	someone responsible for keeping records
	a barrister or solicitor who serves as part-time judge in towns or boroughs