flat sign
The ♭ musical note used to denote that a particular note should be one semitone lower in pitch. For instance, a semitone lower pitch of the B note is written as B♭, or B flat.
The ♭ musical note used to denote that a particular note should be one semitone lower in pitch. For instance, a semitone lower pitch of the B note is written as B♭, or B flat.
