My teacher said that Jiang Dawei has no way to sing. If he doesn’t open up, he has a guttural sound. Please share your opinions.

Jiang Dawei’s singing is self-taught, but his singing has a lot of personality and style. His singing cannot be judged based on academic performance. What he sings is national singing, and national singing has its own performance method. Some are the same as those from the same school, and some are different. For example, when a tenor sings high notes, his larynx moves upward and the tone is brighter.