---
title: Media entity property keys
framework: mediaplayer
role: collectionGroup
role_heading: API Collection
path: mediaplayer/media-entity-property-keys
---

# Media entity property keys

The property keys used to retrieve metadata for media entities.

## Overview

Overview You obtain metadata for a media entity by calling the value(forProperty:) method with these property keys. You can also use some properties to build media property predicates, as described in MPMediaPropertyPredicate. These properties are filterable.

## Topics

### Constants

- [MPMediaEntityPropertyPersistentID](mediaplayer/mpmediaentitypropertypersistentid.md)