B♭7
B♭ Dominant 7th
1 3 5 ♭7
Notes in B♭7
B♭R
D3
F5
A♭♭7
The B♭7 chord contains 4 notes: B♭, D, F, A♭
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | B♭ | Root |
| 3 | 4 | D | Major 3rd |
| 5 | 7 | F | Perfect 5th |
| ♭7 | 10 | A♭ | Minor 7th |
About B♭ Dominant 7th Chords
Dominant 7th chords add a flatted 7th to a major triad, creating tension that wants to resolve. They're the backbone of blues, jazz, funk, and rock. In a standard key, the dominant 7th chord built on the 5th degree naturally resolves to the I chord.
Compatible Scales & Modes
These scales contain all the notes of B♭7 and can be used for soloing, improvising, and writing melodies over this chord.
B♭ Mixolydian
The primary scale for dominant 7th chords — defines blues, rock, and jazz sounds.
B♭ Blues Scale
Minor pentatonic plus the ♭5 'blue note.' Essential for blues soloing over dominant chords.
B♭ Mixolydian ♭9♭13 (Phrygian Dominant)
Used over dominant chords resolving to minor — common in flamenco and jazz.