Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. [people by occupation]
6. [people in the humanities]
7. [people in the arts and related occupations]
8. [people in arts-related occupations]

Additional parents:

1. top of the aat hierarchies
2. Agents Facet
3. People
4. people
5. people by activity
6. theorists

Anotations

Scope note:

Those who write, invent, promote, investigate or propound a theory or theories about music, which is the art concerned with the combining of vocal or instrumental sounds in measured time to communicate emotions, ideas, or states of mind.