thumb piano
US /ˈθʌm ˌpiˈæn.oʊ/
UK /ˈθʌm ˌpiˈæn.oʊ/
1.
a musical instrument of African origin, consisting of a wooden board or resonator with a series of staggered metal tines that are played by plucking with the thumbs
:
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She learned to play the thumb piano, producing soothing melodies.
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The sound of the thumb piano is often described as ethereal and calming.