Gb7 chord
The G-flat dominant seventh chord (abbreviated "Gb7 chord") is a four-note chord consisting of the notes G♭, B♭, D♭, and F♭. The chord is formed by adding a minor seventh to a G-flat major chord.
Name
G-flat dominant seventh chord
Synonym
G-flat major-minor seventh chord
Notes
G♭ B♭ D♭ F♭
Intervals
1 3 5 ♭7
Chord symbol
G♭7
Type
tetrad (four-note chord)