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# MusicPropertySource

An enumeration that specifies which source to use when requesting properties and relationships.

```
enum MusicPropertySource
```

## Topics

### Enumeration Cases

[`case catalog`](/documentation/MusicKit/MusicPropertySource/catalog)

The source representing the Apple Music catalog.

[`case library`](/documentation/MusicKit/MusicPropertySource/library)

The source representing the user’s music library.

## Relationships

### Conforms To

[`Encodable`](/documentation/Swift/Encodable)

[`Decodable`](/documentation/Swift/Decodable)

[`CaseIterable`](/documentation/Swift/CaseIterable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`Sendable`](/documentation/Swift/Sendable)

---

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