---
title: "init(MIDINote:velocity:instrumentID:groupID:duration:)"
framework: avfaudio
role: symbol
role_heading: Initializer
path: "avfaudio/avextendednoteonevent/init(midinote:velocity:instrumentid:groupid:duration:)-3a40r"
---

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

## Declaration

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