Bb Minor Major 7th
Notes:Bb – Db – F – A
Formula:R-m3-P5-M7
Intervals:P1-m3-P5-M7
Scale Degrees:1-b3-5-7
Introduction
The Bb Minor Major 7th piano chord (BbmMaj7) consists of the notes Bb, Db, F, A. It is a minor triad with an added major 7th, giving it a dark and complex character with strong tension, often used in jazz and minor key progressions. Formula: R-m3-P5-M7 | Scale degrees: 1-b3-5-7.
Enharmonic equivalent: B♭ is enharmonically equivalent to A♯. See A# Minor Major 7th.
Notes
Bb Minor Major 7th Inversions
| Position | Notes |
|---|---|
| Root Position | Bb4 – Db5 – F5 – A5 |
| 1st Inversion | Db5 – F5 – A5 – Bb5 |
| 2nd Inversion | F5 – A5 – Bb5 – Db6 |
| 3rd Inversion | Bb4 – Db5 – F5 – A4 |
Key Signature
The key of Bb Minor Major 7th has 5 flats: B♭, E♭, A♭, D♭, G♭.
B♭E♭A♭D♭G♭
Theory: Intervals
Formula: R-m3-P5-M7
Intervals: P1-m3-P5-M7
The Bb Minor Major 7th is built by stacking intervals from the root note. The formula R-m3-P5-M7 describes the scale degrees used. The intervals P1-m3-P5-M7 show the distance between each note in the chord.
Bb Minor Major 7th — Frequently Asked Questions
What notes are in the Bb Minor Major 7th chord?
BbmMaj7 contains: Bb, Db, F, A. Minor triad with major seventh.
How does BbmMaj7 differ from Bbm7?
BbmMaj7 has A (major seventh), Bbm7 has Ab (minor seventh).
How is BbmMaj7 used in music?
Harmonic minor i chord. Jazz, R&B, film scoring.
What songs use Minor Major 7th?
James Bond, My Funny Valentine, Stairway to Heaven pattern.
Why does it sound tense?
Minor third (Db) and major seventh (A) create dissonance.
How does BbmMaj7 differ from Bbmaj7?
BbmMaj7 has minor third (Db). Bbmaj7 has major third (D).
Practice Tips
- Play Bbm then add A — dramatic tension.
- Descending line: Bbm → BbmMaj7 → Bbm7 → Bbm6.
- Harmonic minor i chord.
- Compare with Bbm7.
- The Db–A interval creates tension.
- Jazz and film scoring.