Bb Major
Bb major has 2 flats. Its relative minor is Gm and its parallel key is Bbm. This page lists the signature, scale notes, diatonic chords, and go-to progressions, with tools that play the sound.
Key signature
Flats: 2 (Notes: Bb, Eb)
Scale notes
The notes that make up this scale, shown with their degrees.
| Degree | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Note | Bb | C | D | Eb | F | G | A |
Diatonic chords
The chords that belong to this key, color-coded by role: T (tonic), SD (subdominant), D (dominant).
Triads
| Degree | Chord | Notes | Function |
|---|---|---|---|
| Ⅰ | Bb | Bb D F | T |
| Ⅱm | Cm | C Eb G | SD |
| Ⅲm | Dm | D F A | T |
| Ⅳ | Eb | Eb G Bb | SD |
| Ⅴ | F | F A C | D |
| Ⅵm | Gm | G Bb D | T |
| Ⅶdim | Adim | A C Eb | D |
Seventh chords
| Degree | Chord | Notes | Function |
|---|---|---|---|
| Ⅰmaj7 | Bbmaj7 | Bb D F A | T |
| Ⅱm7 | Cm7 | C Eb G Bb | SD |
| Ⅲm7 | Dm7 | D F A C | T |
| Ⅳmaj7 | Ebmaj7 | Eb G Bb D | SD |
| Ⅴ7 | F7 | F A C Eb | D |
| Ⅵm7 | Gm7 | G Bb D F | T |
| Ⅶm7b5 | Am7b5 | A C Eb G | D |
Related keys
Go-to progressions in this key
Common progressions written out with the real chord names for this key. Play them in the progression player to hear them.
| Progression | Chords | |
|---|---|---|
| Royal Road Progression | Eb - F - Dm - Gm | ▶ Play in player |
| Canon Progression | Bb - F - Gm - Dm - Eb - Bb - Eb - F | ▶ Play in player |
| Komuro Progression | Gm - Eb - F - Bb | ▶ Play in player |
Hear it with the tools
Links that open each tool preset to this key.
Related articles
Articles for anyone who wants to understand keys and signatures more deeply.