Piano Pieces That Are All Sharp or Flat
This page is the CodyCross answer for the clue below from World of Books, Group 295, Puzzle 4 (Audiovisual).
Question is: Piano Pieces That Are All Sharp or Flat
and the answer is: BLACKKEYS
Word Meaning:
BLACK — (of an object) Absorbing all light and reflecting none; dark and hueless.
Definitions from Wiktionary.