Open ( Cmd + Space ) and search for Audio MIDI Setup .
The is a built-in macOS utility that creates virtual MIDI buses to route MIDI data between different applications on the same computer. It acts like a "virtual MIDI cable," allowing one program (like Sibelius) to trigger sounds or actions in another (like Ableton Live or MainStage). 🛠️ Step 1: Activate the IAC Driver Iac Driver
The driver is part of the system but is disabled by default. Open ( Cmd + Space ) and search for Audio MIDI Setup
Ports are the "channels" through which MIDI travels. You can create multiple separate paths for different tasks. Click the [+] button in the "Ports" section. 🛠️ Step 1: Activate the IAC Driver The
If the MIDI window doesn't appear, go to the top menu and select . Locate the IAC Driver icon (it may be grayed out). Double-click the icon to open IAC Driver Properties . Check the box Device is online to activate it. 🔌 Step 2: Configure Ports (Buses)