---
title: "crossfade(duration:)"
framework: musickit
role: symbol
role_heading: Type Method
path: "musickit/musicplayer/transition/crossfade(duration:)"
---

# crossfade(duration:)

A smooth overlap between the currently playing item and the next item with a specified duration.

## Declaration

```swift
static func crossfade(duration: TimeInterval?) -> MusicPlayer.Transition
```