Gb maj7/Bbb

The Gb maj7 chord consists of the Gb (Perfect unison), Bb (Major third), Db (Perfect fifth) and F (Major seventh) notes, with Bbb as the bass note.

Piano keyboard showing the notes for a Gb maj7/Bbb chord

How to play the Gb maj7/Bbb chord

  1. Play Bbb as the lowest bass note in the left hand
  2. Find Gb (Root) on the piano keyboard
  3. Add Bb (Major third) — 4 semitones above Gb
  4. Add Db (Perfect fifth) — 7 semitones above Gb
  5. Add F (Major seventh) — 11 semitones above Gb
  6. Press all 5 notes simultaneously to sound the Gb maj7/Bbb chord