A♯ Dominant 13th
Hear the A♯ Dominant 13th chord played for you.
Introduction
The A♯ Dominant 13th chord is a seven-note chord made up of A♯, D, F, G♯, C, D♯, and G. It is built from a root, major third, perfect fifth, minor seventh, major ninth, perfect eleventh, and major thirteenth.
Notes
Key Signature
The key of A# Dominant 13th (enharmonically equivalent to Bb Dominant 13th) has 2 flats.
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of A♯ Major
These are the diatonic triads built on each degree of the A♯ major scale:
Theory: Intervals
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?
How is A#13 used in music?
What is the scale degree formula for A#13?
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.