Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. groups of people
6. [groups of people by activity]
7. ensembles (musical groups)

Anotations

Scope note:

Organized groups of instrumentalists consisting of players of bowed string instruments, to which may be added any number of wind and percussion instrument players; normally there is more than one player for each musical part.