Post History

Schoenberg's "emancipation of the dissonance" referred to escaping the idea that dissonances are acceptable only if they're resolved. I don't see any political dimension in it. Democracy is even further from his approach to music. Most people in Western culture prefer tonal music, and he was clearly going against the will of the majority. 

Some of his music had pro-freedom implications; "A Survivor from Warsaw" comes to mind. But that's an issue of the subject matter.