How do you play the Bb m7(add11)(no5)/Ab chord?

To play the Bb m7(add11)(no5)/Ab chord on piano, play the Bb m7(add11)(no5) chord (Bb, Db, Ab and Eb) with Ab as the lowest bass note. Place the Ab 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 Bb m7(add11)(no5)/Ab chord means a Bb m7(add11)(no5) chord with Ab in the bass.

Bb m7(add11)(no5)/Ab

Q: What notes are in the Bb m7(add11)(no5)/Ab chord?

The Bb m7(add11)(no5)/Ab chord uses the 4 notes of the Bb m7(add11)(no5) chord — Bb (Perfect unison), Db (Minor third), Ab (Minor seventh) and Eb (Perfect eleventh) — with Ab played as the bass note in the lowest register.

The Bb m7(add11)(no5) chord consists of the Bb (Perfect unison), Db (Minor third), Ab (Minor seventh) and Eb (Perfect eleventh) notes, with Ab as the bass note.

Piano keyboard showing the notes for a Bb m7(add11)(no5)/Ab chord

How to play the Bb m7(add11)(no5)/Ab chord

Play Ab as the lowest bass note in the left hand
Find Bb (Root) on the piano keyboard
Add Db (Minor third) — 3 semitones above Bb
Add Ab (Minor seventh) — 10 semitones above Bb
Add Eb (Perfect eleventh) — 17 semitones above Bb
Press all 5 notes simultaneously to sound the Bb m7(add11)(no5)/Ab chord

Inversions with same root

Ab sus2(add4)

Related chords with different root

Eb 7(sus4)
Bb m7(add4)(no5)
Bb m7(add11)(no5)

Related slash chords

Eb 7(sus)/Ab