(n) :
(music, historical) A sliding wooden frame clamped above the keys of the piano, into which the hands and fingers of a pianist are placed. It was used for learners of the piano in the early 19th century.
(n) :
(music, historical) A sliding wooden frame clamped above the keys of the piano, into which the hands and fingers of a pianist are placed. It was used for learners of the piano in the early 19th century.