A Suspended Fourth Flat Ninth Piano Chord
Piano chord — 5 notes
Root Position: A – D – E – G – B♭
Bass note: A
All Voicings — A Suspended Fourth Flat Ninth
A Suspended Fourth Flat Ninth Piano Chord — Notes and Inversions
Notes: A, D, E, G, B♭
Intervals: 1P, 4P, 5P, 7m, 9m
Number of notes: 5
Also known as: b9sus, phryg, 7b9sus, 7b9sus4
The A Suspended Fourth Flat Ninth chord contains 5 notes (A, D, E, G, B♭). This chord has 4 inversions in addition to the root position. Use the interactive piano keyboard above to explore each voicing.
The A Suspended Fourth Flat Ninth chord is built from the notes A, D, E, G, Bb with intervals 1P, 4P, 5P, 7m, 9m. This voicing creates a distinctive harmonic color that adds variety and emotional depth to your playing. Understanding how these intervals interact helps musicians choose the right chord for any musical moment and connect theory to practical application on the fretboard.
How to Play A Suspended Fourth Flat Ninth
On piano, A suspended fourth flat ninth can be voiced in root position or any of its inversions. Start by playing the notes in close position with the right hand, then explore spread voicings and left-hand bass patterns. Piano allows you to voice every note of the chord simultaneously, making it ideal for hearing the full harmonic color without any limitations.
A Suspended Fourth Flat Ninth in Progressions
A suspended fourth flat ninth appears in various harmonic contexts depending on the key. Analyze the surrounding chords to determine its function — it may serve as a primary chord, a substitution, or a chromatic color chord that enriches the harmonic palette of a progression.
Common Substitutions
Experiment with A7, Amaj7, or related extended chords as substitutions depending on the harmonic context.
Difficulty: On piano, this chord is intermediate — it requires familiarity with extended voicings and smooth finger transitions.