A# Dominant Flat Ninth Ukulele Arpeggio
Ukulele arpeggio — fretboard diagram
A# Dominant Flat Ninth Arpeggio — Notes and Intervals
Notes: A#, D, F, G#, B
Intervals: 1P, 3M, 5P, 7m, 9m
Formula: 2W-WH-WH-WH
Number of notes: 5
Also known as: 7b9
The A# Dominant Flat Ninth arpeggio contains 5 notes (A#, D, F, G#, B). Use the interactive fretboard above to explore this arpeggio on Ukulele with different tunings and fret ranges.
When to Use the A# Dominant Flat Ninth Arpeggio
Play the A# Dominant Flat Ninth arpeggio whenever a A# Dominant 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# Dominant Flat Ninth arpeggio uses 5 notes (A#, D, F, G#, B) 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# Dominant Flat Ninth Arpeggio on Ukulele
On ukulele, find A# around the open strings and play through the arpeggio tones (A#, D, F, G#, B). You may need to move beyond a single chord shape to reach all 5 notes. Practice connecting the arpeggio tones smoothly across adjacent fret positions.
The A# Dominant Flat Ninth arpeggio outlines a dominant seventh chord, creating the tension that wants to resolve. Use it over A#7, A#9, A#13 chords, especially in blues, funk, and jazz where dominant harmony drives the groove.
Practice Routine
Practice the A# Dominant Flat Ninth arpeggio in different octaves, starting low and working up. Then try displacing the octaves — play the root low, the D an octave higher, and continue leaping. This trains your ear to hear the intervals (1P, 3M, 5P, 7m, 9m) in any register.
Ukulele Tips
On ukulele, integrate the A# Dominant Flat Ninth arpeggio into your fingerpicking by plucking through the chord shape one note at a time. This transforms a static strum into a melodic, harp-like texture that showcases each interval clearly.