You can download here:
https://sourceforge.net/projects/munt/f ... 7.0/macOS/
You'll see a list of files there. If you're on Catalina or later, you want to download "MT32Emu-qt-1.11.0.dmg" using the green download button at the upper left. If you're on an earlier version of MacOS, I guess you go into the "old platforms" folder and download the file inside there.
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When you open the disk image you'll see an app: "mt32emu-qt" and a folder called "doc" and an alias to your Applications folder.
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I opted to go into my Applications folder and create a folder called "MT-32 Emulator." Then I copied the "doc" folder and the "mt32emu-qt" application into that folder, and then dragged the "mt32emu-qt" app to the Dock so I could launch it easier later. I ALSO created a folder inside the "MT-32 Emulator" folder called "Roland ROM Files". You should do that now... you'll see why later.
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Okay... so here's the sticky part. This emulator needs to use ROM images from the old Roland MT-32 which technically are copyrighted. So I can't post the link. Normally, I'm very uncomfortable with that sort of thing, but it's hard to see how Roland is being harmed if people like me want to play old sequences meant for the MT-32. If Roland sold an MT-32 emulation plug-in that worked on current versions of MacOS, I'd buy it. But it's not out there AFAIK. There is NO commercial alternative that works with current MacOS, and trust me I looked. If someone can point me to one, I'll delete this topic immediately.
So that said... I can't post a link, but if you Google "Roland ROMs - Google Drive" it's very likely there will be a link at the top of your search results. If you end up somewhere that looks like the screenshot below (but before you drank way too much) then you're probably in the right place.
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Using right-click you can download two files from there:
MT32_CONTROL.1988-09-30.vX.XX-patched.ROM
MT32_PCM.rom
Those are the only ones you need. There is another MT-32 file called "MT32_CONTROL.1987-10-07.v1.07.ROM" which I suppose is an alternative to the "patched" ROM, but I have not tried it and the video I found that helped me figure this out used the patched ROM which worked well.
I then put those two ROM images inside the "Roland ROMs" folder inside my "MT-32 Emulator" folder.
Launch the "mt32emu-qt" app. From the Options menu, choose "ROM Configuration..." At the top you will see where it shows you the "ROM Directory" with a default location. Click the button with three dots to the right of the directory and navigate to Applications/MT-32 Emulator/Roland ROM Files/ and choose "Open"
You should now see the ROM files in the file listing below. Click the check boxes to the left of them and click OK.
You should be good to go. By default, when it is launched "mt32emu-qt" will publish a virtual MIDI port that will appear in DP as "Mt32EmuPort". See screenshot below.
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The usual MT-32 behaviors apply. It won't play anything on Channel 1. You use Channels 2-8 (or (?) for the standard instruments and Channel 10 is reserved for drums. But it will bring up the correct patches if there are embedded patch changes in the sequence and it responds to volume and pan... it does what it claims to do... it emulates the MT-32. Here's a pic of me using the emulator with DP. Notice it can be set to float on top while DP is foreground app.
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Another caveat... the MT-32 emulator is an app, not a plug in, so its audio does not route through DP's mixing board, but goes directly to your output audio device. You can configure that somewhat from the emulators main window where it has a drop down menu for "Device:". In my case chose "CoreAudio: 828ES". It did not seem to allow me to choose particular outputs. There may be ways around this and ways to route the app into DP somehow using Soundflower or similar things, but I haven't tried. This is all the functionality I really need to figure out what some of my old projects meant for MT-32 actually sound like.
Oh... and one LAST thing... it does NOT appear as a MIDI device in Audio MIDI Setup... so really, as far as I know, there's no way to use Cherry Picker and use a custom patch list with it. Maybe someone brilliant can figure that one out, but it's probably not trivial.
