Answer: gflat

AnswerCrossword Clue
GFLATF sharp alias
GFLATChopin's fifth etude is in it
GFLATMusical note that's a step and a half below A
GFLATSame as F-sharp
GFLATA black key
GFLATChopin's Polonaise No. 16 in ...
GFLATKey of Chopin's "Butterfly Etude."
GFLATMusical key.
GFLATSame as F sharp.
GFLATTough key for pianists
GFLATScale with one white key
GFLATPiano key next to A
GFLATNote next to F
GFLATF sharp's equivalent
GFLATKey of Chopin's "Black Key Etude"
GFLATBlack key
GFLATNote above F
GFLATPiano note
GFLATF neighbor
GFLATKeyboard note
GFLATOne of a trio of black keys
GFLATPiano key next to F
GFLATF sharp equivalent
GFLATF sharp, enharmonically
GFLATF-sharp equivalent
GFLATKey of Schubert's Impromptu Op. 90, No. 3
GFLATKey next to F
GFLATKey above F
GFLATBlack piano key
GFLATF-Sharp?