How do you play the Bb m7(b9)(#9)/Db chord?

To play the Bb m7(b9)(#9)/Db chord on piano, play the Bb m7(b9)(#9) chord (Bb, Db, F, Ab, Cb and Db) with Db as the lowest bass note. Place the Db 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(b9)(#9)/Db chord means a Bb m7(b9)(#9) chord with Db in the bass.

Bb m7(b9)(#9)/Db

Q: What notes are in the Bb m7(b9)(#9)/Db chord?

The Bb m7(b9)(#9)/Db chord uses the 6 notes of the Bb m7(b9)(#9) chord — Bb (Perfect unison), Db (Minor third), F (Perfect fifth), Ab (Minor seventh), Cb (Minor ninth) and Db (Minor tenth) — with Db played as the bass note in the lowest register.

The Bb m7(b9)(#9) chord consists of the Bb (Perfect unison), Db (Minor third), F (Perfect fifth), Ab (Minor seventh), Cb (Minor ninth) and Db (Minor tenth) notes, with Db as the bass note.

Piano keyboard showing the notes for a Bb m7(b9)(#9)/Db chord

How to play the Bb m7(b9)(#9)/Db chord

Play Db 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 F (Perfect fifth) — 7 semitones above Bb
Add Ab (Minor seventh) — 10 semitones above Bb
Add Cb (Minor ninth) — 13 semitones above Bb
Add Db (Minor tenth) — 15 semitones above Bb
Press all 7 notes simultaneously to sound the Bb m7(b9)(#9)/Db chord

Inversions with same root

Db m7(add6)
Db 7(add6)

Related chords with different root

Bb m7(b9)
Bb m7(b9)(#9)