B Major is a key of Tongeschlechts Major, which builds on the root b. The key of B- flat major is written in standard notation with two ♭ ( b it ). The corresponding scale and the basic chord in this key ( the tonic bdf ) are denoted by the term B- flat major.
For many brass instruments, this key is the easiest, because many of them have a B as the root and its harmonic series itself covers over long distances with the B major scale. Therefore, this key is often used in wind music literature. So are many national anthems in that key.
Classification of the key