How do you play the Ab Petrushka chord/Cb chord?

To play the Ab Petrushka chord/Cb chord on piano, play the Ab Petrushka chord chord (Ab, Bbb, C, D, Eb and Gb) with Cb as the lowest bass note. Place the Cb 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 Petrushka chord/Cb chord means a Ab Petrushka chord chord with Cb in the bass.

Ab Petrushka chord/Cb

Q: What notes are in the Ab Petrushka chord/Cb chord?

The Ab Petrushka chord/Cb chord uses the 6 notes of the Ab Petrushka chord chord — Ab (Perfect unison), Bbb (Minor second), C (Major third), D (Diminished fifth), Eb (Perfect fifth) and Gb (Minor seventh) — with Cb played as the bass note in the lowest register.

The Ab Petrushka chord chord consists of the Ab (Perfect unison), Bbb (Minor second), C (Major third), D (Diminished fifth), Eb (Perfect fifth) and Gb (Minor seventh) notes, with Cb as the bass note.

Piano keyboard showing the notes for a Ab Petrushka chord/Cb chord

How to play the Ab Petrushka chord/Cb chord

Play Cb as the lowest bass note in the left hand
Find Ab (Root) on the piano keyboard
Add Bbb (Minor second) — 1 semitone above Ab
Add C (Major third) — 4 semitones above Ab
Add D (Diminished fifth) — 6 semitones above Ab
Add Eb (Perfect fifth) — 7 semitones above Ab
Add Gb (Minor seventh) — 10 semitones above Ab
Press all 7 notes simultaneously to sound the Ab Petrushka chord/Cb chord

Related slash chords

D Petrushka chord/B