B Major
B major has 5 sharps. Its relative minor is G#m and its parallel key is Bm. This page lists the signature, scale notes, diatonic chords, and go-to progressions, with tools that play the sound.
Key signature
Sharps: 5 (Notes: F#, C#, G#, D#, A#)
Scale notes
The notes that make up this scale, shown with their degrees.
| Degree | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Note | B | C# | D# | E | 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 | B | B D# F# | T |
| Ⅱm | C#m | C# E G# | SD |
| Ⅲm | D#m | D# Gb A# | T |
| Ⅳ | E | E G# B | SD |
| Ⅴ | F# | F# A# C# | D |
| Ⅵm | G#m | G# B D# | T |
| Ⅶdim | A#dim | A# Db E | D |
Seventh chords
| Degree | Chord | Notes | Function |
|---|---|---|---|
| Ⅰmaj7 | Bmaj7 | B D# F# A# | T |
| Ⅱm7 | C#m7 | C# E G# B | SD |
| Ⅲm7 | D#m7 | D# Gb A# Db | T |
| Ⅳmaj7 | Emaj7 | E G# B D# | SD |
| Ⅴ7 | F#7 | F# A# C# E | D |
| Ⅵm7 | G#m7 | G# B D# Gb | T |
| Ⅶm7b5 | A#m7b5 | A# Db E Ab | 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 | E - F# - D#m - G#m | ▶ Play in player |
| Canon Progression | B - F# - G#m - D#m - E - B - E - F# | ▶ Play in player |
| Komuro Progression | G#m - E - F# - B | ▶ 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.