Russel Berg wrote:

>Why is Schoenberg an important composer?

Simple.  Because like Beethoven, Bach, Mozart, Bartok, Stravinsky, Brahms,
Rachmaninoff, and countless others, he wrote beautiful, great music.
Personally, I think this is more important than any historical influence.

Leslie Kinton
The Royal Conservatory of Music, Toronto.
Anagnoson and Kinton piano duo website: http://www.pianoduo.com