Music Guide #2 – The Key Of B Major

Chords In The Key Of B Major

What are the basic chords in the key of B major?

Take a look at the basic chords in the key of B. We will learn the basic three note chords (triads), as well as four note extended chords.

What are the chords in this key? To answer this question we first of all need to take a look at the B major scale. The B major scale consists of the notes, B C# D# E F# G# A#. Each of the chords in the key of B major are named after one of these notes. Secondly, all the chords in this key (B major) makes use of these notes only.

The chords follow the pattern, Major Minor Minor Major Major Minor Diminished.

The triad chords in this key are B major, C# minor, D# minor, E major, F# major, G# minor, and A# diminished. The four note chords are B major seventh, C# minor seventh, D# minor seventh, E major seventh, F# dominant seventh, G# minor seventh, and A# minor seventh flat five.

Numerals indicate each chord’s position relative to the scale. Numerals that represent a major chord are usually capitalized, and minor and diminished chords are lower case.

  • 1 – B major, B major seventh (Bmaj, Bmaj7)
  • 2 – C# minor, C# minor seventh (C#m, C#m7)
  • 3 – D# minor, D# minor seventh (D#m, D#m7)
  • 4 – E major, E major seventh (E, Emaj 7)
  • 5 – F# major, F# dominant seventh (F#, F#7)
  • 6 – G# minor, G# minor seventh (G#m, G#m7)
  • 7 – A# diminished, A# minor seventh flat five (A#°, A#m7b5)

Piano Chords In The Key Of B Major

B major

B major (or the key of B) is a major scale based on B. The pitches B, C♯, D♯, E, F♯, G♯, and A♯ are all part of the B major scale. Its key signature has five sharps. Its relative minor is G-sharp minor, its parallel minor is B minor, and its enharmonic equivalent is C-flat major.

Relative key: G-sharp minor enharmonic: A-flat minor

Parallel key: B minor

Dominant key: F-sharp major enharmonic: G-flat major

Subdominant: E major

Enharmonic: C-flat major

Component pitches

B, C♯, D♯, E, F♯, G♯, A♯

G-sharp minor

G-sharp minor is a minor scale based on G♯, consisting of the pitches G♯, A♯, B, C♯, D♯, E, and F♯. Its key signature has five sharps.

Relative key: B major

Parallel key: G-sharp major enharmonic: A-flat major

Dominant key: D-sharp minor enharmonic: E-flat minor

Subdominant: C-sharp minor

Enharmonic: A-flat minor

Component pitches

G♯, A♯, B, C♯, D♯, E, F♯


C-flat major

C-flat major (or the key of C-flat) is a major scale based on C♭, consisting of the pitches C♭, D♭, E♭, F♭, G♭, A♭, and B♭. Its key signature has seven flats. The direct enharmonic equivalent of C-flat major is B major, a key signature with five sharps.

Relative key: A-flat minor enharmonic: G-sharp minor

Parallel key: C-flat minor enharmonic: B minor

Dominant key: G-flat major enharmonic: F-sharp major

Subdominant: F-flat major enharmonic: E major

Enharmonic: B major

Component pitches

C♭, D♭, E♭, F♭, G♭, A♭, B♭

A-flat minor

A-flat minor is a minor scale based on A♭, consisting of the pitches A♭, B♭, C♭, D♭, E♭, F♭, and G♭. Its key signature has seven flats. Its relative major is C-flat major (or enharmonically B major), its parallel major is A-flat major, and its enharmonic equivalent is G-sharp minor.

Relative key: C-flat major enharmonic: B major

Parallel key: A-flat major

Dominant key: E-flat minor enharmonic: D-sharp minor

Subdominant: D-flat minor enharmonic: C-sharp minor

Enharmonic: G-sharp minor

Component pitches

A♭, B♭, C♭, D♭, E♭, F♭, G♭


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