Post-impressionism is defined as the art movement of independent styles for expressing the feelings of the artists. It was thought to be originated in French during the late nineteenth century. Among the famous post-impressionists are Paul Cezanne and Vincent van Gogh.
A) Atonal composition that does not use serialism.
Pierrot Lunaire is a series of 21 poems in the form of a melodrama, set to music and is in atonal form. Notably, it did not employ the 12-tone technique, or any other form of serialism.