G# Dominant 9th
Notes:G# – C – D# – F# – A#
Formula:R-M3-P5-m7-M9
Intervals:P1-M3-P5-m7-M9
Scale Degrees:1-3-5-b7-9
Introduction
The G# Dominant 9th piano chord (G#9) consists of the notes G#, C, D#, F#, A#. Formula: R-M3-P5-m7-M9 | Scale degrees: 1-3-5-b7-9.
Enharmonic equivalent: G♯ is enharmonically equivalent to A♭. See Ab Dominant 9th.
Notes
G# Dominant 9th Inversions
| Position | Notes |
|---|---|
| Root Position | G#4 – C5 – D#5 – F#5 – A#5 |
| 1st Inversion | C4 – D#4 – F#4 – A#4 – G#5 |
| 2nd Inversion | D#4 – F#4 – A#4 – G#5 – C6 |
Key Signature
The key of G# Dominant 9th has Key signature data not available.
Theory: Intervals
Formula: R-M3-P5-m7-M9
Intervals: P1-M3-P5-m7-M9
The G# Dominant 9th is built by stacking intervals from the root note. The formula R-M3-P5-m7-M9 describes the scale degrees used. The intervals P1-M3-P5-m7-M9 show the distance between each note in the chord.
G# Dominant 9th — Frequently Asked Questions
What notes are in the G# Dominant 9th chord?
The G# Dominant 9th chord (G#9) contains 5 notes: G#, C, D#, F#, A#. Formula: R-M3-P5-m7-M9.
How is G#9 used in music?
G#9 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for G#9?
G#9 uses scale degrees 1-3-5-b7-9, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on G# and spacing remaining fingers across the chord.
- Practice G#9 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing G#9 in different octaves to find the most comfortable position.
- Resolve G#9 to a nearby chord to hear its function in context.