What is the tone of Shanxi Baishi tribute?

Playing in B and F keys, generally the suona played by Shanxi Baishi Gongcai is a small suona in B-flat and F-flat keys. In short, it is a deep, tragic and desolate song. Suona (also known as Haidi), general high-pitched suona and large suona, but can be divided into various tonality suona (such as small suona in G, small suona in F, high-pitched suona in D, high-pitched suona in C and large suona in G). Generally speaking, the common range of traditional suona is 17 degrees. Take the most commonly used high-pitched suona in D as an example.