B Major

Chords in the key of

The scale’s notes are numbered from 1 to 7. Roman numerals are used to label the basic triad (1-3-5) chords built on each of those notes.

The notes of the B major scale are:

B – C# – D# – E – F# – G# – A#

Key of B major

I ii iii IV V vi vii°
B C#m D#m E F# G#m A#dim
B major C sharp minor D sharp minor E major F sharp major G sharp minor A sharp diminished
B - D# - F# C# - E - G# D# - F# - A# E - G# - B F# - A# - C# G# - B - D# A# - C# - E

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That’s the diatonic set. If you stay strictly inside the key, these are your friends. The pattern of naming chords for every major key is:

Major, Minor, Minor, Major, Major, Minor, Diminished. Numerals in UPPERCASE (I, IV, V) denote major chords, and numerals in lowercase (ii, iii, vi) denote minor chords.

B Major: Extended Chords

Bmaj7
B - E♭ - F# - B♭

F#7
F# - A# - C# - E

G#m7
G# - B - D# - F#

Emaj7
E - G# - B - D#

C#m7
C# - E - G# - B

A Major
A - D♭ - E

B Major’s Parallel Minor

Changing between parallel keys can feel bold, emotional, and cinematic.

These notes come from the B natural minor scale (D, G, and A), and are commonly borrowed individually to colour chords in B major:

Parallel Minor: B major yoinks from B minor

♭III iv v ♭VI ♭VII
D Em F#m G A
D major E minor F# minor G major A major
D - F# - A E - G - B F# - A - C# G - B - D A - C# - E

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