G# Add 9

Notes:G# – C – D# – A#
Formula:R-M3-P5-M9
Intervals:P1-M3-P5-M9
Scale Degrees:1-3-5-9

Introduction

The G# Add 9 piano chord (G#add9) consists of the notes G#, C, D#, A#. 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: G♯ is enharmonically equivalent to Aā™­. See Ab Add 9.

Notes

Notes:G# – C – D# – A#

G# Add 9 Inversions

PositionNotes
Root PositionG#4 – C5 – D#5 – A#5
1st InversionC5 – D#5 – G#5 – A#5
2nd InversionD#5 – G#5 – A#5 – C6
3rd InversionG#4 – C5 – D#5 – A#4

Key Signature

The key of G# Add 9 has Key signature data not available.

Theory: Intervals

Formula: R-M3-P5-M9
Intervals: P1-M3-P5-M9

The G# 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.

G# Add 9 — Frequently Asked Questions

What notes are in the G# Add 9 chord?

G# Add 9 is built from the G# root. Check the interactive keyboard above for exact notes and fingering.

How is the G# Add 9 chord used in music?

G# Add 9 appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Add 9).

What is the fingering for G# 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 G# Add 9?

Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.

Practice Tips

  • Major triad plus the 9th — no 7th.
  • Open, modern pop sound.
  • Simpler than a full 9th chord.
  • Compare with G#9.
  • Common in pop and worship music.
  • Bright, spacious quality.