a musical instrument consisting of a frame supporting a graduated series of parallel strings, played by plucking with the fingers. The modern orchestral harp has an upright frame, with pedals which enable the strings to be retuned to different keys

Papa had been teaching him to play the blues harp

a marine mollusc which has a large vertically ribbed shell with a wide aperture, found chiefly in the Indo-Pacific

talk or write persistently and tediously on (a particular topic)

I don't want to harp on about the past

you need to stop harping on her age

play on a harp

among them harped the divine minstrel Demodocus