How do you play the Ab m(maj9)(no5)/Gb chord?

To play the Ab m(maj9)(no5)/Gb chord on piano, play the Ab m(maj9)(no5) chord (Ab, Cb, G and Bb) 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 Ab m(maj9)(no5)/Gb chord means a Ab m(maj9)(no5) chord with Gb in the bass.

Ab m(maj9)(no5)/Gb

Q: What notes are in the Ab m(maj9)(no5)/Gb chord?

The Ab m(maj9)(no5)/Gb chord uses the 4 notes of the Ab m(maj9)(no5) chord — Ab (Perfect unison), Cb (Minor third), G (Major seventh) and Bb (Major ninth) — with Gb played as the bass note in the lowest register.

The Ab m(maj9)(no5) chord consists of the Ab (Perfect unison), Cb (Minor third), G (Major seventh) and Bb (Major ninth) notes, with Gb as the bass note.

Piano keyboard showing the notes for a Ab m(maj9)(no5)/Gb chord

How to play the Ab m(maj9)(no5)/Gb chord

Play Gb as the lowest bass note in the left hand
Find Ab (Root) on the piano keyboard
Add Cb (Minor third) — 3 semitones above Ab
Add G (Major seventh) — 11 semitones above Ab
Add Bb (Major ninth) — 14 semitones above Ab
Press all 5 notes simultaneously to sound the Ab m(maj9)(no5)/Gb chord