Select all that apply. the “twelve-tone” technique .

-is part of the expressionism music
-is characterized by the works of arnold schoenberg
-ensures that the music will be on key
-ensures that the 12 notes are given equal importance

The question of what caused the full effects of the radical stage, also called the second french revolution by some historians, which shook the political and social reforms in france have caught the attention of many scholars, particularly because of principles implemented during this stage which is contradictory to the fundamental principle of the french revolution itself, by using dictatorship to create equality.