---
title: "init(MIDINote:velocity:groupID:duration:)"
framework: avfaudio
role: symbol
role_heading: Initializer
path: "avfaudio/avextendednoteonevent/init(midinote:velocity:groupid:duration:)-985j8"
---

# init(MIDINote:velocity:groupID:duration:)

## Declaration

```swift
init(MIDINote midiNote: Float, velocity: Float, groupID: UInt32, duration: AVMusicTimeStamp)
```