- (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.
Origin of key signature
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for key signature
Key-signature; how determine whether a major or minor key.24, 25.Music Notation and Terminology
Karl W. Gehrkens
- music a group of sharps or flats appearing at the beginning of each stave line to indicate the key in which a piece, section, etc, is to be performed