Bb 7(b5)/F#

The Bb 7(b5) chord consists of the Bb (Perfect unison), D (Major third), Fb (Diminished fifth) and Ab (Minor seventh) notes, with F# as the bass note.

Piano keyboard showing the notes for a Bb 7(b5)/F# chord

How to play the Bb 7(b5)/F# chord

  1. Play F# as the lowest bass note in the left hand
  2. Find Bb (Root) on the piano keyboard
  3. Add D (Major third) — 4 semitones above Bb
  4. Add Fb (Diminished fifth) — 6 semitones above Bb
  5. Add Ab (Minor seventh) — 10 semitones above Bb
  6. Press all 5 notes simultaneously to sound the Bb 7(b5)/F# chord

Inversions with same root

Related chords with different root

Related slash chords