b major scale:  1 2 3 4 5 6 7 8 b c# d# e f# g# a# b
a [key] in which [music] is played, consisting of five sharps or flats
"b major scale:  1 2 3 4 5 6 7 8 b c# d# e f# g# a# b" What is the definition of "b major"?