electronic musical instrument vs electronic instrument

electronic musical instrument and electronic instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
electronic musical instrument	Yes	No	No	No
electronic instrument	Yes	No	No	No

As nouns, electronic musical instrument and electronic instrument are synonyms defined as:

electronic musical instrument and electronic instrument: a musical instrument that generates sounds electronically

electronic musical instrument (noun)	electronic instrument (noun)
a musical instrument that generates sounds electronically	a musical instrument that generates sounds electronically