Bb 9♯5
Notes:Bb – D – F# – Ab – C
Formula:R-M3-A5-m7-M9
Intervals:P1-M3-A5-m7-M9
Scale Degrees:1-3-#5-b7-9
Introduction
The Bb 9♯5 piano chord (Bb9♯5) consists of the notes Bb, D, F#, Ab, C. Formula: R-M3-A5-m7-M9 | Scale degrees: 1-3-#5-b7-9.
Enharmonic equivalent: B♭ is enharmonically equivalent to A♯. See A# 9♯5.
Notes
Bb 9♯5 Inversions
| Position | Notes |
|---|---|
| Root Position | Bb4 – D5 – F#5 – Ab5 – C6 |
| 1st Inversion | D4 – F#4 – Ab4 – C5 – Bb5 |
| 2nd Inversion | F#4 – Ab4 – C5 – Bb5 – D6 |
Key Signature
The key of Bb 9♯5 has 2 flats: B♭, E♭.
B♭E♭
Theory: Intervals
Formula: R-M3-A5-m7-M9
Intervals: P1-M3-A5-m7-M9
The Bb 9♯5 is built by stacking intervals from the root note. The formula R-M3-A5-m7-M9 describes the scale degrees used. The intervals P1-M3-A5-m7-M9 show the distance between each note in the chord.
Bb 9♯5 — Frequently Asked Questions
What notes are in the Bb 9♯5 chord?
The Bb 9♯5 chord (Bb9♯5) contains 5 notes: Bb, D, F#, Ab, C. Formula: R-M3-A5-m7-M9.
How is Bb9♯5 used in music?
Bb9♯5 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 Bb9♯5?
Bb9♯5 uses scale degrees 1-3-#5-b7-9, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on Bb and spacing remaining fingers across the chord.
- Practice Bb9♯5 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing Bb9♯5 in different octaves to find the most comfortable position.
- Resolve Bb9♯5 to a nearby chord to hear its function in context.