How do you play the Bb maj7(no3)/G chord?

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

What notes are in the Bb maj7(no3)/G chord?

The Bb maj7(no3)/G chord uses the 2 notes of the Bb maj7(no3) chord — Bb (Perfect unison) and A (Major seventh) — with G 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 Bb maj7(no3)/G chord means a Bb maj7(no3) chord with G in the bass.

Bb maj7(no3)/G

The Bb maj7(no3) chord consists of the Bb (Perfect unison) and A (Major seventh) notes, with G as the bass note.

How to play the Bb maj7(no3)/G chord

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

Inversions with same root

G m(add2)(no5)
G m(add9)(no5)