Autoharp

[ aw-toh-hahrp ]
/ ˈɔ toʊˌhɑrp /

Trademark.

a zither having buttons that when depressed damp all strings except those to be sounded, the undamped strings being strummed to produce simple chords.

British Dictionary definitions for autoharp

Autoharp
/ (ˈɔːtəʊˌhɑːp) /

noun

trademark a zither-like musical instrument used in country-and-western music, equipped with button-controlled dampers that can prevent selected strings from sounding, thus allowing chords to be played. It is plucked with the fingers or a plectrum