Guitar arpeggio
F# Dominant 7 Flat 9 Guitar Arpeggio
F# Dominant 7 Flat 9 is a five-note arpeggio built from F#, A#, C#, E, and G. It is also commonly called F# Dominant Seven Flat Nine and F# 7 Flat 9. Use it to study chord tones, interval formulas, and guitar fretboard positions.
- Chord tones
- F#, A#, C#, E, G
- Formula
- 1 3 5 b7 b9
- Semitones
- 0 4 7 10 13
- Chord symbols
- F#7b9
- Also called
- F# Dominant Seven Flat NineF# 7 Flat 9
How to read this arpeggio
The chord tones are shown as pitch classes first. In the fretboard tool, square markers represent F# root notes, while circular markers represent the remaining tones in the arpeggio.
Use the interactive fretboard to locate the F# root notes and connect the remaining dominant 7 flat 9 chord tones across standard tuning.
This same arpeggio shape is also commonly called F# Dominant Seven Flat Nine or F# 7 Flat 9.
Chord construction and defining tones
F# dominant 7 flat 9 is defined by 3 (A#), b7 (E), and b9 (G). The dominant tritone supplies the function, while the flat ninth adds a strong semitone tension above the root.
Harmonic use
Use this arpeggio over F#7b9, especially on altered V chords resolving to a minor tonic.
Practice this arpeggio on guitar
- Play the F# Dominant 7 Flat 9 arpeggio from one F# root to the next in at least two fretboard positions, saying each note name and interval degree aloud.
- Isolate 3 (A#), b7 (E), and b9 (G) and resolve the flat ninth down to the root before practicing the full arpeggio.
- Build tension over F#7b9 with the flat ninth, then resolve each altered or guide tone by the smallest available move.
Fretboard diagram
Open this arpeggio in the fretboard tool
Start with F# Dominant 7 Flat 9 loaded, then adjust tuning, labels, colors, fret count, and orientation.
Open in interactive fretboard