He is especially known as an opera conductor, having conducted a large number of operas at companies all over the world.
For opera conductors, at least, that is the way the world has always turned.
He later moved to Germany and built up his career as an opera conductor.
But today, for the most part, opera conductors have lost such dominance.
After graduating in 1933 he worked as an opera conductor in Europe.
In America, by contrast, there is simply no way for an opera conductor to get such experience.
In 1781 he moved to Scotland with his family to become an opera conductor.
At this time he was better known as an opera conductor than an orchestral one.
"James Levine is the best opera conductor in the world."
He was particularly well known as an opera conductor.