He is best remembered today for his contribution to Russian opera.

It is one of the most important Russian operas of the 20th century.

What is in store in terms of the Russian opera he champions?

He is also an editor and translator, especially of Russian operas.

A recurring theme he addressed was the poor state of Russian opera.

The first Russian opera was given in 1915 with a great success.

The 19th century was the golden age of Russian opera.

The Russian opera is continuing its development in the 21st century.

The flowering of Russian opera and ballet pointed in the same direction.

This device seems to take on a character of its own in Russian operas.