Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. sound device components
7. aerophone components
8. keywork

Anotations

Scope note:

Keywork for the flute developed by Theobald Boehm in the 1830s, involving an improved placement of fingerholes and a key mechanism to provide full venting and bring all fingerholes within easy control of the fingers. Other instrument makers later adapted the system for the clarinet, oboe, bassoon, and other aerophones.