Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Sound Devices (hierarchy name)
5. sound devices (equipment)
6. [sound devices by acoustical characteristics]
7. idiophones
8. struck idiophones
9. directly struck idiophones
10. percussion idiophones
11. percussion idiophones: hollow-bodied
12. [bells and sets of bells]
13. bells (idiophones)
14. resting bells

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Sound Devices
5. sound devices
6. sound devices by acoustical characteristics
7. idiophones
8. struck idiophones
9. directly struck idiophones
10. percussion idiophones
11. percussion idiophones: hollow-bodied
12. gongs and sets of gongs
13. gongs

Anotations

Scope note:

Bells used in Christian services to mark the most important parts of the service, the eucharistic celebration. Sanctus gongs are located on or near the altar; they have a louder, deeper tone than altar bells, and are often struck with a mallet from the outside rather than with a clapper on the inside of the bell. In modern services, the altar bells are often used universally for all alerts during the Mass rather than using different bells for different purposes.