<!--
{
  "availability" : [
    "iOS: 11.0.0 -",
    "iPadOS: 11.0.0 -",
    "macCatalyst: 13.1.0 -",
    "tvOS: 14.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "MediaPlayer",
  "identifier" : "/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Media Player"
    ],
    "preciseIdentifier" : "c:objc(cs)MPMusicPlayerPlayParametersQueueDescriptor"
  },
  "title" : "MPMusicPlayerPlayParametersQueueDescriptor"
}
-->

# MPMusicPlayerPlayParametersQueueDescriptor

A set of properties and methods for modifying how to play items, based on play parameters the framework returns.

```
class MPMusicPlayerPlayParametersQueueDescriptor
```

## Overview

Use this class to modify the player queue created by a query before the queue begins to play. You can modify when individual items start and stop playing, along with setting the first item for playing.

## Topics

### Creating a new play parameters queue descriptor

[`-  initWithPlayParametersQueue:`](/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor/init(playParametersQueue:))

Creates a new queue descriptor using the designated queue of play parameters.

[`MPMusicPlayerPlayParameters`](/documentation/MediaPlayer/MPMusicPlayerPlayParameters)

The MusicKit parameters that describe items to play.

### Accessing the play parameters

[`playParametersQueue`](/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor/playParametersQueue)

An array containing the play parameters returned from querying MusicKit.

[`startItemPlayParameters`](/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor/startItemPlayParameters)

The item identified by the play parameters to play first.

[`MPMusicPlayerPlayParameters`](/documentation/MediaPlayer/MPMusicPlayerPlayParameters)

The MusicKit parameters that describe items to play.

### Setting start and end times

[`-  setStartTime:forItemWithPlayParameters:`](/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor/setStartTime(_:forItemWith:))

Sets the time the item with the associated play parameters is to start playing.

[`-  setEndTime:forItemWithPlayParameters:`](/documentation/MediaPlayer/MPMusicPlayerPlayParametersQueueDescriptor/setEndTime(_:forItemWith:))

Sets the time the item with the associated play parameters is to stop playing.

## Relationships

### Inherits From

[`MPMusicPlayerQueueDescriptor`](/documentation/MediaPlayer/MPMusicPlayerQueueDescriptor)

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

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

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

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

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)