F# Add 9
Notes:F# ā A# ā C# ā G#
Formula:R-M3-P5-M9
Intervals:P1-M3-P5-M9
Scale Degrees:1-3-5-9
Introduction
The F# Add 9 piano chord (F#add9) consists of the notes F#, A#, C#, G#. It is a major triad with an added major 9th without the 7th, giving it a bright, open character that adds color to a major chord without the 7th. Formula: R-M3-P5-M9 | Scale degrees: 1-3-5-9.
Enharmonic equivalent: FāÆ is enharmonically equivalent to Gā. See Gb Add 9.
Notes
F# Add 9 Inversions
| Position | Notes |
|---|---|
| Root Position | F#4 ā A#4 ā C#5 ā G#5 |
| 1st Inversion | A#4 ā C#5 ā F#5 ā G#5 |
| 2nd Inversion | C#5 ā F#5 ā G#5 ā A#5 |
| 3rd Inversion | F#4 ā A#4 ā C#5 ā G#4 |
Key Signature
The key of F# Add 9 has 6 sharps: FāÆ, CāÆ, GāÆ, DāÆ, AāÆ, EāÆ.
FāÆCāÆGāÆDāÆAāÆEāÆ
Theory: Intervals
Formula: R-M3-P5-M9
Intervals: P1-M3-P5-M9
The F# Add 9 is built by stacking intervals from the root note. The formula R-M3-P5-M9 describes the scale degrees used. The intervals P1-M3-P5-M9 show the distance between each note in the chord.
F# Add 9 ā Frequently Asked Questions
What notes are in the F# Add 9 chord?
F# Add 9 is built from the F# root. Check the interactive keyboard above for exact notes and fingering.
How is the F# Add 9 chord used in music?
F# Add 9 appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Add 9).
What is the fingering for F# Add 9?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of F# Add 9?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.
Practice Tips
- Major triad plus the 9th ā no 7th.
- Open, modern pop sound.
- Simpler than a full 9th chord.
- Compare with F#9.
- Common in pop and worship music.
- Bright, spacious quality.