double flat

noun

, Music.

double flat

music
1. an accidental that lowers the pitch of the following note two semitones Usual symbol
2. a note affected by this accidental

postpositive denoting a note of a given letter name lowered in pitch by two semitones

What is the meaning of the sharps on the E and B line, and of a double-flat?

(Sometimes also the single sharp or flat will be found by itself, cancelling the double-sharp or double-flat).

Next to Worksop Abbey, almost demolished; the church has a double flat tower entire, and a pretty gate.

As the single-flat lowers a note by a half-tone, so a double-flat lowers it by two half-tones or a full tone.

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