How do you play the Gb maj7(no3)/Bbb chord?

To play the Gb maj7(no3)/Bbb chord on piano, play the Gb maj7(no3) chord (Gb and F) with Bbb as the lowest bass note. Place the Bbb note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What notes are in the Gb maj7(no3)/Bbb chord?

The Gb maj7(no3)/Bbb chord uses the 2 notes of the Gb maj7(no3) chord — Gb (Perfect unison) and F (Major seventh) — with Bbb played as the bass note in the lowest register.

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 Gb maj7(no3)/Bbb chord means a Gb maj7(no3) chord with Bbb in the bass.

Gb maj7(no3)/Bbb

The Gb maj7(no3) chord consists of the Gb (Perfect unison) and F (Major seventh) notes, with Bbb as the bass note.

How to play the Gb maj7(no3)/Bbb chord

Play Bbb as the lowest bass note in the left hand
Find Gb (Root) on the piano keyboard
Add F (Major seventh) — 11 semitones above Gb
Press all 3 notes simultaneously to sound the Gb maj7(no3)/Bbb chord