---
title: MIDICIInitiatiorMUID
framework: coremidi
role: symbol
role_heading: Type Alias
path: coremidi/midiciinitiatiormuid
---

# MIDICIInitiatiorMUID

The unique MIDI-CI negotiation identifier to use for a responder connection.

## Declaration

```swift
typealias MIDICIInitiatiorMUID = NSNumber
```

## Discussion

Discussion As required by the MIDI-CI specification, this value is a randomly assigned 28-bit integer.

## See Also

### Inspecting a Responder

- [initiators](coremidi/midiciresponder/initiators.md)
- [MIDICIDeviceIdentification](coremidi/midicideviceidentification.md)
- [MIDICIDeviceInfo](coremidi/midicideviceinfo.md)
- [deviceInfo](coremidi/midiciresponder/deviceinfo.md)