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# init(channel:programNumber:)

Creates a program change event with a channel and program number.

```
init(channel: UInt32, programNumber: UInt32)
```

## Parameters

`channel`

The MIDI channel for the message, between `0` and `15`.

`programNumber`

The program number to send, between `0` and `127`.

## Discussion

The instrument this chooses depends on [`AVMIDIControlChangeEvent.MessageType.bankSelect`](/documentation/AVFAudio/AVMIDIControlChangeEvent/MessageType-swift.enum/bankSelect) events sent prior to this event.

---

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