B♭
Bb Major — the foundation triad — stable, bright, and the reference point every other chord colour is measured against.
The keys
B♭ – D – F
What's inside B♭
| Note | Interval from root | Degree |
|---|---|---|
| B♭ | Root | 1 |
| D | Major 3rd | 3 |
| F | Perfect 5th | 5 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | B♭4 – D5 – F5 |
| 1st inversion | D5 – F5 – B♭5 |
| 2nd inversion | F5 – B♭5 – D6 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | B♭2 – F3 |
| Right (colour) | D5 – F5 |
Where B♭ lives
As the I chord
B♭ → E♭ → F → B♭
The classic I–IV–V–I motion with this chord as home.
In a ii–V–I
Cm7 → F7 → B♭
The strongest cadence in harmony, resolving onto this chord.
Put B♭ under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →