A# 9sus4
Notes:A# – D# – F – G# – C
Formula:R-P4-P5-m7-M9
Intervals:P1-P4-P5-m7-M9
Scale Degrees:1-4-5-b7-9
Introduction
The A# 9sus4 piano chord (A#9sus4) consists of the notes A#, D#, F, G#, C. Formula: R-P4-P5-m7-M9 | Scale degrees: 1-4-5-b7-9.
Enharmonic equivalent: A♯ is enharmonically equivalent to B♭. See Bb 9sus4.
Notes
A# 9sus4 Inversions
| Position | Notes |
|---|---|
| Root Position | A#4 – D#5 – F5 – G#5 – C6 |
| 1st Inversion | D#4 – F4 – G#4 – C5 – A#5 |
| 2nd Inversion | F4 – G#4 – C5 – A#5 – D#6 |
Key Signature
The key of A# 9sus4 has Key signature data not available.
Theory: Intervals
Formula: R-P4-P5-m7-M9
Intervals: P1-P4-P5-m7-M9
The A# 9sus4 is built by stacking intervals from the root note. The formula R-P4-P5-m7-M9 describes the scale degrees used. The intervals P1-P4-P5-m7-M9 show the distance between each note in the chord.
A# 9sus4 — Frequently Asked Questions
What notes are in the A# 9sus4 chord?
The A# 9sus4 chord (A#9sus4) contains 5 notes: A#, D#, F, G#, C. Formula: R-P4-P5-m7-M9.
How is A#9sus4 used in music?
A#9sus4 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 A#9sus4?
A#9sus4 uses scale degrees 1-4-5-b7-9, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on A# and spacing remaining fingers across the chord.
- Practice A#9sus4 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing A#9sus4 in different octaves to find the most comfortable position.
- Resolve A#9sus4 to a nearby chord to hear its function in context.