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The Clue
Feature of the 1925 opera "Wozzeck" (9 letter answer)
The Answer
ATONALITY
Tags
Notes
The answer ATONALITY is so rare that it appears less than once every 2500 puzzles.
Related Clues
Quality of Bartók's music
Definition
ATONALITY as a noun:
1. (atonality, atonalism) = the absence of a key; alternative to the diatonic system