Back سي منخفض كبير Arabic Si bemoll major Catalan سیی نزمی گەورە CKB B-Dur German Σι ύφεση μείζονα Greek B♭-maĵoro Esperanto Si bemol mayor Spanish B-duur Estonian Si bemol maior Basque سی بمل ماژور Persian
| Relative key | G minor |
|---|---|
| Parallel key | B-flat minor |
| Dominant key | F major |
| Subdominant | E-flat major |
| Component pitches | |
| B♭, C, D, E♭, F, G, A | |
B-flat 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-flat minor.
The B-flat major scale is:
Many transposing instruments are pitched in B-flat major, including the clarinet, trumpet, tenor saxophone, and soprano saxophone. As a result, B-flat major is one of the most popular keys for concert band compositions.