The trick is get the right installer. You need Mac v91217 | May 17, 2022
Go to the MOTU Download Center here:
https://motu.com/en-us/download/
From the Product Category drop down choose MIDI Interfaces. Then choose MID Express 128 as the Product
Download the latest installer, and run it. As you can see, the installer shows "MTP AV" as one of the supported interfaces. Worked like a champ. I'm absolutely thrilled that these OLD MIDI interfaces are still working!! Event ClockWorks is working!!
Amazing!! The hard part will be figuring out where the patchlist files will go that I created with Cherry Picker on my old MacPro with Mojave. That's gonna take some fiddling around.
