Set up MIDI devices
If you use MIDI devices or a MIDI interface connected to your Mac, you can use Audio MIDI Setup to describe the configuration of your MIDI devices.
You can use this configuration information for apps that work with MIDI, such as sequencers, to control your MIDI devices.
Connect your MIDI devices to your Mac.
If you’re using an interface device, connect any other MIDI devices you’re using to the interface. Make sure any software provided by the manufacturer of the MIDI devices has been installed. For more information, see the documentation that came with your devices.
In Audio MIDI Setup, choose Window > Show MIDI Studio.
The MIDI devices connected to your Mac should appear in the MIDI Studio window. If they don’t, see If a MIDI device doesn’t appear when it’s connected.
Click the Configuration pop-up menu, then choose New Configuration. Give the new configuration a name, then click OK.
Double-click the icon for a MIDI device to describe the device configuration:
You can give it a name and provide other information about the device. This name appears in apps you use with your MIDI device.
To change the icon, click Open Icon Browser.
To select settings for the MIDI properties and ports for the device, click More Information.
Repeat steps 4 and 5 for each MIDI device you want to include in the configuration.
To specify the connection between MIDI devices, drag the output or input connectors above the device icon to the corresponding connector on the other device icon.
You can’t specify a “MIDI thru” connection between two MIDI devices. To indicate a MIDI thru connection, connect the two MIDI devices to the same port of the MIDI interface device.