---
title: MPMusicPlayerControllerQueueDidChangeNotification
framework: mediaplayer
role: symbol
role_heading: Global Variable
path: mediaplayer/mpmusicplayercontrollerqueuedidchangenotification
---

# MPMusicPlayerControllerQueueDidChangeNotification

Indicates the music player’s queue changed.

## Declaration

```occ
extern NSString * const MPMusicPlayerControllerQueueDidChangeNotification;
```

## See Also

### Changing the queue contents

- [perform(queueTransaction:completionHandler:)](mediaplayer/mpmusicplayerapplicationcontroller/perform(queuetransaction:completionhandler:).md)