Bb major

B♭ major

Relative key	G minor
Parallel key	B♭ minor
Dominant key	F major
Subdominant	E♭ major
Component pitches
B♭, C, D, E♭, F, G, A

In music theory, B♭ major is a major scale based on B♭, with pitches B♭, C, D, E♭, F, G, and A. Its key signature has two flats. Its relative minor is G minor and its parallel minor is B♭ minor.

The B♭ major scale is:

Many transposing instruments are pitched in B♭ major, including the clarinet, trumpet, tenor saxophone, and soprano saxophone. As a result, B♭ major is a popular key for concert band compositions.

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