Protective Cover of a Piano Keyboard

This page is the CodyCross answer for the clue below from Concert Hall, Group 598, Puzzle 4 (Wolfgang Amadeus Mozart).

Question is: Protective Cover of a Piano Keyboard

and the answer is: FALLBOARD

Word Meaning:

FALLBOARD — (music) The hinged cover which protects the keyboard of a piano when not in use

Definitions from Wiktionary.