C-flat

Semitone below C

C-flat is a musical note one half step below C, enharmonically equivalent to B—the same pitch with a different name.

It appears in certain key signatures and theoretical contexts where the spelling matters for notation: The key of G-flat major has a C-flat in its scale.

In practice, musicians simply play B.

pitch

enharmonic

Sonically identical, spelled differently

tuning · intonation · temperament · cents · frequency · microtonal · notation · solfege · chromatic · diatonic

key

modulation

Varying signals to transmit

transposition · accidentals · harmony · cadence

instrument

piano

Keyed percussion instrument

guitar · violin · cello · brass · woodwind · intonation · position · embouchure · voicing · register

Categories
  • flat notes
Opposites
pitch alteration direction

C-flatC-sharp

Enharmonic to D-flat

C# · sharp · B-sharp · raised · F-sharp

Family

flat, flats, flatten, flattened, flattening, flatter, flattest, flatly, flatness

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Used worldwide · Timeless · Rated G