The G flat minor chord is enharmonically the same as the F minor chord. The Gbm chord actually contains a B double flat (Bbb). This is because the Gb Major chord contains Bb as its 3rd. Therefore, when we lower the 3rd by another semitone, it becomes Bbb (B double flat), which is the same note as A. 

The Bbb can technically be played on an open string (5th string), but because it is so low, it sounds muddy and is impractical. Therefore, Gbm is not practical as an open chord. Instead, the chord is usually played as a bar chord, on the 2nd fret (root 6) or 9th fret (root 5).

Some Quick Gbm Chord Theory

  • The G flat minor chord contains the notes Gb, Bx and Db.
  • The Gb minor chord is produced by playing the 1st (root), flat 3rd and 5th notes of the Gb Major scale.
  • The Gb minor chord (just like all minor chords) contains the following intervals (from the root note): minor 3rd, Major 3rd, Perfect 4th (back to the root note).
  • G flat minor is the relative minor of B Major.
  • Gbm is the first chord in the key of G flat minor. The seven chords in the key of Gb minor are: Gbm, Ab diminished, Bbb+, Cbm, Db, Ebb, F diminished

10 Ways To Play The Gb Minor Chord

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

Gb Minor Chord - 10 Shapes

Further Reading