I set up a macro to open Calendar when I press a “device key” on my external keyboard. This device key is labeled both F9 and play/pause. The keyboard is a Microsoft Sculpt keyboard, which connects to my MacBook Pro via a dongle plugged into a USB port.
When I press my device key, Calendar launches, and so does iTunes. I don’t want iTunes to launch when I press that key - ever. I have searched through all of the iTunes menus and system menus, and can’t figure out why this is happening or how to stop it. Any ideas?