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A♭ Minor Add 9

chord·/chords/minor-add-9/a-flat/

The A♭ Minor Add 9 chord contains the notes A♭, B♭, C♭, and E♭.

Notes: A♭, B♭, C♭, E♭ · Piano keys: A♭ B♭ C♭ E♭

Reviewed for accuracy · Last updated July 2026 · Maintained by Justin Evans

G♯ Minor Add 9
This is the same chord as G♯ Minor Add 9 — the same keys on the keyboard, spelled with sharps.
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A♭
A♭ – B♭ – C♭ – E♭

Practice A♭ Minor Add 9

Reading about it is one thing. Drilling it is what makes it automatic.

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Introduction

The A♭ Minor Add 9 chord is a four-note chord made up of A♭, B♭, C♭, and E♭.

Notes

Notes:A♭ – B♭ – C♭ – E♭

Key Signature

A chord has no key signature of its own, but the A♭ Minor Add 9 is the tonic (i) chord of Ab Minor, which shares the signature of its relative major, Cb Major7 flats (B♭, E♭, A♭, D♭, G♭, C♭, F♭).

B♭E♭A♭D♭G♭C♭F♭

Order of flats

Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.

BEADGCF

Mnemonic: Battle Ends And Down Goes Charles’ Father

Chords in the Key of A♭ Minor

These are the triads built on each degree of the A♭ minor scale:

C1C2C3C4BC5C6C7C8G#D#
iA♭ Minor (minor)
DegreeNumeralChordQuality
1iA♭ MinorMinor
2ii°B♭ DiminishedDiminished
3IIIB MajorMajor
4ivD♭ MinorMinor
5vE♭ MinorMinor
6VIE MajorMajor
7VIIG♭ MajorMajor

A♭ Minor Add 9 — Frequently Asked Questions

What is the A♭ Minor Add 9 chord on piano?
The A♭ Minor Add 9 chord contains the notes A♭ – B♭ – C♭ – E♭. On piano, play these notes together to sound the chord.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.

References & Further Reading

The note names, intervals, fingering, and harmony on this chord page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data reflects piano.org's own interval-derived dataset.

  1. 1

    Goetschius, Percy(1889)

    The Material Used in Musical Composition

    Public domain treatise
  2. 2

    Riemann, Hugo(1896)

    Harmony Simplified (English translation)

    Public domain treatise
  3. 3

    W. A. Mozart(1783)

    Piano Sonata in A♭ major, K. 331

    Public domain score
  4. 4

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