A Suspended Fourth Flat Ninth Guitar Arpeggio
Guitar arpeggio — fretboard diagram
A Suspended Fourth Flat Ninth Arpeggio — Notes and Intervals
Notes: A, D, E, G, Bb
Intervals: 1P, 4P, 5P, 7m, 9m
Formula: 5-W-WH-WH
Number of notes: 5
Also known as: b9sus, phryg, 7b9sus, 7b9sus4
The A Suspended Fourth Flat Ninth arpeggio contains 5 notes (A, D, E, G, Bb). Use the interactive fretboard diagram above to explore each arpeggio shape and pattern on Guitar. Practice ascending and descending from the root note across all strings to learn the sound of this arpeggio.
When to Use the A Suspended Fourth Flat Ninth Arpeggio
Play the A Suspended Fourth Flat Ninth arpeggio whenever a A Suspended Fourth Flat Ninth chord appears in a progression. Unlike scales (which include passing tones), arpeggios guarantee every note you play IS a chord tone, making your solo sound harmonically precise and intentional.
Arpeggio vs. Scale
The A Suspended Fourth Flat Ninth arpeggio uses 5 notes (A, D, E, G, Bb) while the full scale uses 7. The arpeggio is a subset — think of it as the skeleton of the scale. Practice alternating between the arpeggio and the full scale to develop a melodic vocabulary that mixes chord tones with passing tones.
How to Play A Suspended Fourth Flat Ninth Arpeggio on Guitar
Root your A Suspended Fourth Flat Ninth arpeggio at fret 5 on the 6th (low E), or alternatively at open position using open A string. This 5-note arpeggio (A, D, E, G, Bb) benefits from economy picking, combining sweep and alternate picking motions. Practice isolating two-string pairs to build coordination before linking the full shape.
The A Suspended Fourth Flat Ninth arpeggio avoids the third, creating an open, unresolved sound. It works over Asus4, Asus2, A7sus4 voicings and is perfect for creating a modern, ambiguous harmonic feel that neither commits to major nor minor.
Practice Routine — Exercises for Playing
Play the A Suspended Fourth Flat Ninth arpeggio as whole notes over a backing track or drone on A. Focus on intonation and tone quality for each of the 5 notes (A, D, E, G, Bb). After a few passes, begin improvising short melodic phrases built from these arpeggio tones, connecting them with passing notes.
Guitar Tips
On guitar, practice the A Suspended Fourth Flat Ninth arpeggio using sweep picking across all six strings. Start with downstrokes ascending and upstrokes descending at a slow tempo, keeping each note separated rather than blurred. Mute unused strings with your fretting hand to keep the sound clean.
Related Resources
- Harmonize A Suspended Fourth Flat Ninth
- Browse Chord Progressions
- Interactive Circle of Fifths
- A Suspended Fourth Flat Ninth on Bass
Explore A Suspended Fourth Flat Ninth in Other Tunings
- A Suspended Fourth Flat Ninth in Drop D (E-B-G-D-A-D)
- A Suspended Fourth Flat Ninth in DADGAD (D-A-G-D-A-D)
- A Suspended Fourth Flat Ninth in Open G (D-B-G-D-G-D)
- A Suspended Fourth Flat Ninth in Baritone (B Standard) (B-F#-D-A-E-B)
- A Suspended Fourth Flat Ninth in 7-string (E-B-G-D-A-E-B)
- A Suspended Fourth Flat Ninth in 8-string (E-B-G-D-A-E-B-F#)
- A Suspended Fourth Flat Ninth in Drop C (D-A-F-C-G-C)
- A Suspended Fourth Flat Ninth in Drop B (C#-G#-E-B-F#-B)
- A Suspended Fourth Flat Ninth in Open D (D-A-F#-D-A-D)
- A Suspended Fourth Flat Ninth in Half Step Down (Eb-Bb-Gb-Db-Ab-Eb)
- A Suspended Fourth Flat Ninth in Open E (E-B-G#-E-B-E)
- A Suspended Fourth Flat Ninth in Open A (E-C#-A-E-A-E)
- A Suspended Fourth Flat Ninth in Double Drop D (D-B-G-D-A-D)
- A Suspended Fourth Flat Ninth in Open C (E-C-G-C-G-C)