A# Dominant 13th
Notes:A# – D – F – G# – C – D# – G
Formula:R-M3-P5-m7-M9-P11-M13
Intervals:P1-M3-P5-m7-M9-P11-M13
Scale Degrees:1-3-5-b7-9-11-13
Introduction
The A# Dominant 13th piano chord (A#13) consists of the notes A#, D, F, G#, C, D#, G. Formula: R-M3-P5-m7-M9-P11-M13 | Scale degrees: 1-3-5-b7-9-11-13.
Enharmonic equivalent: A♯ is enharmonically equivalent to B♭. See Bb Dominant 13th.
Notes
A# Dominant 13th Inversions
| Position | Notes |
|---|---|
| Root Position | A#4 – D5 – F5 – G#5 – C6 – G6 – D#6 |
| 1st Inversion | D4 – F4 – G#4 – C5 – G5 – A#5 – D#5 |
| 2nd Inversion | F4 – G#4 – C5 – D#5 – D6 – G5 – A#5 |
Key Signature
The key of A# Dominant 13th has Key signature data not available.
Theory: Intervals
Formula: R-M3-P5-m7-M9-P11-M13
Intervals: P1-M3-P5-m7-M9-P11-M13
The A# Dominant 13th is built by stacking intervals from the root note. The formula R-M3-P5-m7-M9-P11-M13 describes the scale degrees used. The intervals P1-M3-P5-m7-M9-P11-M13 show the distance between each note in the chord.
A# Dominant 13th — Frequently Asked Questions
What notes are in the A# Dominant 13th chord?
The A# Dominant 13th chord (A#13) contains 7 notes: A#, D, F, G#, C, D#, G. Formula: R-M3-P5-m7-M9-P11-M13.
How is A#13 used in music?
A#13 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#13?
A#13 uses scale degrees 1-3-5-b7-9-11-13, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on A# and spacing remaining fingers across the chord.
- Practice A#13 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing A#13 in different octaves to find the most comfortable position.
- Resolve A#13 to a nearby chord to hear its function in context.