Darkness. Tchaikovsky comes to my mind. Oppression. Shostakovitch is not far. Fear… may be Rachmaninov? But then there is light! Strauss! It must be Strauss. It isn’t. It’s Arnold Schönberg. Wait, the rebel from Vienna, he cannot have written such a piece? There is tonality. And chromaticism*. And melody and all you would not expect. Well, Schönberg wanted to go beyond the existing means of musical expression, but to get there, he first had to work his way through precisely those traditional means of musical expression.