Why did Arban say to not change an embouchure?
In Arban’s text he was not dogmatic about his position, but dogmatic about changing an embouchure being bad. Consider the fact that he was speaking as an authority at the time and those changing would be changing from a higher position to his 1/3 top lip position. He knew from experience that people had problems with the change. The problem was not the change but what the change was to. St. Jacome, an author at the same time, cites in his original original text that 2/3 on the top lip is the best way. In 2002 Carl Fischer reissued the St. Jacome’s Method with the original text that Claude Gordon was instrumental in restoring.