The Gb7 (G flat dominant 7) chord contains the notes Gb, Bb, Db and Fb. It is produced by taking the root (1), 3, 5 and b7 of the Gb Major scale. It is essentially a Gb chord, with an added flat 7.

Gb7 is most commonly played with the root note on the 2d fret of the 6th string.

Gb7 is short for Gb dominant 7. The dominant 7 chord is a significant chord, because it plays a very important function in any given key.

The dominant 7 chord functions as a chord that resolves to the first chord in a key. For example, the G flat dominant 7 chord resolves to the Cb chord (really just a B Major chord) which is the first chord in the key of Gb.

10 Ways To Play The Gb7 Chord

If you’ve come to this page just to view some chord diagrams for Gb7, here they are.

G Flat 7 Chord 10 Shapes

Some Quick G Flat 7 Chord Theory

  • The Gb7 chord contains the notes Gb, Bb, Db and Fb.
  • Gb7 is short for G flat dominant 7.
  • The Gb7 chord is produced by taking the 1 (root), 3, 5 and b7 of the G flat Major scale.
  • The Gb7 is the fifth chord in the key of Cb (B). It resolves naturally to the B Major chord.
  • The Gb7 chord (just like all dominant 7 chords) contains the following intervals (starting from the root note): major 3rd, minor 3rd, minor 3rd, tone (which leads back to the root note).
  • The Gb mixolydian mode can be used when soloing over the Gb dominant 7 chord.

Further Reading