<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AudioToolbox",
  "identifier" : "/documentation/AudioToolbox/kMusicEventType_ExtendedTempo",
  "metadataVersion" : "0.1.0",
  "role" : "Global Variable",
  "symbol" : {
    "kind" : "Global Variable",
    "modules" : [
      "Audio Toolbox"
    ],
    "preciseIdentifier" : "c:@Ea@kMusicEventType_NULL@kMusicEventType_ExtendedTempo"
  },
  "title" : "kMusicEventType_ExtendedTempo"
}
-->

# kMusicEventType_ExtendedTempo

An event that signals a change in tempo, in beats-per-minute.

```
var kMusicEventType_ExtendedTempo: UInt32 { get }
```

---

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)