# init(filterPredicates:) Initializes a media query with a set of media property predicates. ``` init(filterPredicates: Set?) ``` ## Parameters `filterPredicates` The set of media property predicates to use as a filter on the library. ## Return Value An initialized media query. ## Discussion [`MPMediaPropertyPredicate`](/documentation/MediaPlayer/MPMediaPropertyPredicate) describes how to create media property predicates. The [General media item property keys](/documentation/MediaPlayer/general-media-item-property-keys) and `Podcast Item Property Keys` enumerations in [`MPMediaItem`](/documentation/MediaPlayer/MPMediaItem) contain the keys you can use to construct predicates. --- Copyright © 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)