KeysBb major
Key reference · diatonic chords

The Key of Bb major

The key of Bb major is built on the Bb major scale and contains the seven chords Bb, Cm, Dm, Eb, F, Gm, and Adim. Its key signature has 2 flats (Bb, Eb).

Below are those chords by scale degree, the progressions they build, and the related scale and key you can reach from here.

Chords in the key of Bb major

IBbiiCmiiiDmIVEbVFviGm
vii°Adim

Common progressions in Bb major

I – IV – VBbEbF
I – V – vi – IVBbFGmEb
ii – V – ICmFBb
I – vi – IV – VBbGmEbF

The Bb major scale on the fretboard →

See every note of the scale this key is built from, mapped across the neck.

Explore keys on the Circle of Fifths →

The free interactive circle shows every key signature and the chords that belong to each key.

Other major keys

C majorDb majorD majorEb majorE majorF majorF# majorG majorAb majorA majorB major

Frequently asked questions

What chords are in the key of Bb major?
The key of Bb major contains seven chords, one on each note of the scale: Bb, Cm, Dm, Eb, F, Gm, and Adim. In Roman numerals those are I, ii, iii, IV, V, vi, vii°.
What is the key signature of Bb major?
Bb major has 2 flats (Bb, Eb). It shares that key signature with its relative minor, G minor.
What are common chord progressions in Bb major?
I – IV – V is Bb – Eb – F; I – V – vi – IV is Bb – F – Gm – Eb. The I, IV, and V chords (Bb, Eb, F) do most of the work in popular music.
What is the relative minor of Bb major?
The relative minor of Bb major is G minor. It uses the same notes and the same key signature, just starting from a different home note.