How do you play the F m7(b5)/Gb chord?

To play the F m7(b5)/Gb chord on piano, play the F m7(b5) chord (F, Ab, Cb and Eb) with Gb as the lowest bass note. Place the Gb note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The F m7(b5)/Gb chord means a F m7(b5) chord with Gb in the bass.

F m7(b5)/Gb

Q: What notes are in the F m7(b5)/Gb chord?

The F m7(b5)/Gb chord uses the 4 notes of the F m7(b5) chord — F (Perfect unison), Ab (Minor third), Cb (Diminished fifth) and Eb (Minor seventh) — with Gb played as the bass note in the lowest register.

The F m7(b5) chord consists of the F (Perfect unison), Ab (Minor third), Cb (Diminished fifth) and Eb (Minor seventh) notes, with Gb as the bass note.

Piano keyboard showing the notes for a F m7(b5)/Gb chord

How to play the F m7(b5)/Gb chord

Play Gb as the lowest bass note in the left hand
Find F (Root) on the piano keyboard
Add Ab (Minor third) — 3 semitones above F
Add Cb (Diminished fifth) — 6 semitones above F
Add Eb (Minor seventh) — 10 semitones above F
Press all 5 notes simultaneously to sound the F m7(b5)/Gb chord

Related slash chords

Ab m6/Gb
Ab m(add13)/Gb
B 6(b5)/F#