Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by material or technique]
7. time-based works

Anotations

Scope note:

Works from the 1950s and 1960s that were unique, unrehearsed events, often combining elements of theater, music, and the visual arts. Usually nonverbal, they may incorporate visual, tactile, and olfactory responses, chance, and audience participation. The term was coined by artist Allan Kaprow.