Music Style Founded by Viennese Composer Schonberg
Puzzle 16 of Vienna Hard Pack
Question is: Music Style Founded by Viennese Composer Schonberg
and the answer is: SERIALISM
Word Meaning:
SERIALISM — (music) Music, especially from the 20th century, in which themes are based on a definite order of notes of an equal-tempered scale.
Definitions from Wiktionary.