Pitch Anchor
- CURIE:
gmeow:PitchAnchor - IRI: https://blackcatinformatics.ca/gmeow/PitchAnchor
- Category: class
- Defined by:
gmeow:slices/music - Box roles: TBox role (What is this?)
A binding between one degree of a TuningSystem and a physical frequency in an explicit acoustic frame (e.g., A440 vs Baroque A415). Hz is never asserted directly on a PitchValue; it is reached only through fnPitchToFrequency(value, anchor) (Principles 11, 12).
Structure
Subclass of: gmeow:Entity, gufo:Object
Practical Pattern
Use gmeow:PitchAnchor as a specialized kind of gmeow:Entity, gufo:Object. Add statement metadata or a standpoint when the assertion needs provenance, confidence, or vantage.