Flat (music)
![C♭-major/a♭-minor key signature](/Images/godic/202501/13/C-flat-major_a-flat-minor.svg2754.png")
In music, flat, or bemolle (Italian: "soft B") means "lower in pitch". In music notation, the flat symbol, ♭ derived from a stylised lowercase "b", lowers a note by a half step. Intonation or tuning is said to be flat when it is below the true pitch.