harp vs harper

harp and harper both are nouns.

Word	Noun	Adjective	Verb	Adverb
harp	Yes	No	Yes	No
harper	Yes	No	No	No

harp (noun)	harper (noun)
a chordophone that has a triangular frame consisting of a sounding board and a pillar and a curved neck; the strings stretched between the neck and the soundbox are plucked with the fingers	someone who plays the harp
a pair of curved vertical supports for a lampshade
a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole

harp (verb)	harper (verb)
come back to
play the harp