Harmonic Fluency
There are really two different systems of harmony that brass instrumentalists must consider. First, the ‘classical’ harmony that has become the backbone of Western Classical Music. Second, a more contemporary style of harmony that breaks away from the diatonic norms of the classical era. For our purposes, I differentiate these two schools as “classical” harmony and “contemporary” harmony. I fully realize that I use these terms loosely. It is only a starting point.