---
title: MPMusicPlayerQueueDescriptor
framework: mediaplayer
role: symbol
role_heading: Class
path: mediaplayer/mpmusicplayerqueuedescriptor
---

# MPMusicPlayerQueueDescriptor

The abstract base class for audio media item and store queue descriptors.

## Declaration

```swift
class MPMusicPlayerQueueDescriptor
```

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Inherited By

- [MPMusicPlayerMediaItemQueueDescriptor](mediaplayer/mpmusicplayermediaitemqueuedescriptor.md)
- [MPMusicPlayerPlayParametersQueueDescriptor](mediaplayer/mpmusicplayerplayparametersqueuedescriptor.md)
- [MPMusicPlayerStoreQueueDescriptor](mediaplayer/mpmusicplayerstorequeuedescriptor.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Media player queues

- [MPMusicPlayerControllerQueue](mediaplayer/mpmusicplayercontrollerqueue.md)
- [MPMusicPlayerControllerMutableQueue](mediaplayer/mpmusicplayercontrollermutablequeue.md)
- [MPMusicPlayerApplicationController](mediaplayer/mpmusicplayerapplicationcontroller.md)
- [MPMusicPlayerMediaItemQueueDescriptor](mediaplayer/mpmusicplayermediaitemqueuedescriptor.md)
- [MPMusicPlayerStoreQueueDescriptor](mediaplayer/mpmusicplayerstorequeuedescriptor.md)
- [MPMusicPlayerPlayParametersQueueDescriptor](mediaplayer/mpmusicplayerplayparametersqueuedescriptor.md)