The Well-Tempered __, Bach Work for Piano Learners

This page is the CodyCross answer for the clue below from All Things Water, Group 1292, Puzzle 4 (Saltwater Tanks).

Question is: The Well-Tempered __, Bach Work for Piano Learners

and the answer is: CLAVIER

Word Meaning:

CLAVIER — (music) The keyboard of an organ, pianoforte, or harmonium.

Definitions from Wiktionary.

The Well-Tempered __, Bach work for piano learners — CodyCross Answer | CodyCross Solutions