---
title: kMusicEventType_ExtendedTempo
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kmusiceventtype_extendedtempo
---

# kMusicEventType_ExtendedTempo

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

## Declaration

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

## See Also

### Constants

- [kMusicEventType_AUPreset](audiotoolbox/kmusiceventtype_aupreset.md)
- [kMusicEventType_ExtendedNote](audiotoolbox/kmusiceventtype_extendednote.md)
- [kMusicEventType_MIDIChannelMessage](audiotoolbox/kmusiceventtype_midichannelmessage.md)
- [kMusicEventType_MIDINoteMessage](audiotoolbox/kmusiceventtype_midinotemessage.md)
- [kMusicEventType_MIDIRawData](audiotoolbox/kmusiceventtype_midirawdata.md)
- [kMusicEventType_Meta](audiotoolbox/kmusiceventtype_meta.md)
- [kMusicEventType_NULL](audiotoolbox/kmusiceventtype_null.md)
- [kMusicEventType_Parameter](audiotoolbox/kmusiceventtype_parameter.md)
- [kMusicEventType_User](audiotoolbox/kmusiceventtype_user.md)