B♭ major or B-flat major is a major scale starting on B-flat. Its key signature has two flats.
Its relative minor is G minor, and its parallel minor is B♭ minor.
B-flat major is a good key for most wind instruments, especially those for which it is their home key, such as clarinets, trumpets, saxophones, and the flutes in B-flat.
Haydn's Symphony No. 98, which had both trumpet and timpani, is known as the first symphony that anyone had written in that key. Actually, his brother Michael Haydn had written one earlier. However, Joseph Haydn still gets credit for writing the timpani part at actual pitch with an F major key signature (instead of transposing with a C major key signature), something that made things easier and made more sense.
Five of Mozart's piano concerti are in B-flat major.
Well-known classical compositions in this key
- ↑ H. C. Robbins Landon, Haydn Symphonies London: British Broadcasting Corporation (1966): 57
Scales and keys
| Diatonic Scales and Keys
|The table shows the number of sharps or flats in each scale. Minor scales are written in lower case.