B♭ Major: Notes, Chords and Scale

B♭ major is a major key. Its key signature has 2 flats: B♭, E♭. Its scale is B♭, C, D, E♭, F, G, A, and its seven diatonic chords are B♭, Cm, Dm, E♭, F, Gm, Adim. Below are the 7th chords, Roman numerals, related keys, the Camelot code and a keyboard diagram.

Key signature

2♭

Relative key

G minor

Parallel key

B♭ minor

Camelot code

6B

Notes

B♭ C D E♭ F G A

CDFGACDFGAE♭B♭E♭B♭
The B♭ major scale on a keyboard, root highlighted.

Chords in B♭ major

  • IB♭B♭ D F
  • iiCmC E♭ G
  • iiiDmD F A
  • IVE♭E♭ G B♭
  • VFF A C
  • viGmG B♭ D
  • vii°AdimA C E♭

Seventh chords

  • Imaj7B♭maj7B♭ D F A
  • ii7Cm7C E♭ G B♭
  • iii7Dm7D F A C
  • IVmaj7E♭maj7E♭ G B♭ D
  • V7F7F A C E♭
  • vi7Gm7G B♭ D F
  • viiø7Am7♭5A C E♭ G

How to use these chords

  • I, IV and V (B♭, E♭, F) are the primary chords. Together they contain all seven notes of the scale.
  • vi (Gm) and iii (Dm) each share two notes with I, and ii (Cm) shares two notes with IV, so these minor chords often stand in for them.
  • V7 (F7) contains the leading tone, A, which pulls up to the root, so it resolves strongly to I. vii° (Adim) has the same upper three notes as V7 and is mostly used as a passing chord.
  • Common progressions, in Roman numerals: I V vi IV (B♭, F, Gm, E♭); I vi IV V (B♭, Gm, E♭, F); ii V I (Cm, F, B♭); ii7 V7 Imaj7 (Cm7, F7, B♭maj7).

Common uses of B♭ major

  • B♭ major shares its seven notes and its key signature with its relative minor, G minor.
  • On a piano, 2 of its seven notes are black keys.
  • It reads easily for horn sections: B♭ instruments such as trumpet, clarinet and tenor saxophone read it as C major, and E♭ alto saxophone reads it as G major.
  • In the Camelot system DJs use for harmonic mixing, B♭ major is 6B; tracks in 5B, 7B and 6A usually mix smoothly with it.

Questions about B♭ major

What chords are in B♭ major?

The seven chords in B♭ major are B♭, Cm, Dm, E♭, F, Gm, Adim (I, ii, iii, IV, V, vi, vii°). As seventh chords they are B♭maj7, Cm7, Dm7, E♭maj7, F7, Gm7, Am7♭5.

What notes are in the B♭ major scale?

B♭, C, D, E♭, F, G, A. Its key signature has 2 flats: B♭, E♭.

What is the relative minor of B♭ major?

G minor. It uses the same seven notes and key signature as B♭ major, starting from G. The parallel minor, B♭ minor, starts on the same note as B♭ major but has a different key signature.

What is the Camelot code for B♭ major?

6B. Next to it on the Camelot wheel are 5B and 7B, and 6A is its relative minor, G minor.

Related keys