Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. [concepts in the arts and humanities]
5. [genres in literature and performing arts]
6. [genres for performing arts]
7. music (performing arts genre)
8. serial music

Anotations

Scope note:

A body of musical compositions created since the early part of the 20th century created using the twelve-tone system attributed to Arnold Schoenberg. Generally twelve-tone music is considered a subset of serial music, but there is some disagreement on this.