I have a Yamaha TX81Z FM synthesizer. I found the manual and read the MIDI sysex table which led me to understand all parameters can be modified in realtime. This is relevant to my interests. Before I spend time plugging byte strings into Pure Data, would anyone know if this is already a thing that exists?

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http://ctrlr.org/yamaha-tx81z/
Runs on Linux, Mac, WIndows

https://www.squest.com/Products/MidiQuest11/Instruments/YamahaTX81Z/index.html
Runs on Mac, Windows

Do you have a Mac? I used to use a great editor called opFour created by Katsuhiro Chiba. I have a version of it on my computer I can share if you’d like. It was originally created with Max and turned into an app.

Also, in hardware, the Stereoping programmer looks like it solves a lot of problems.

Don’t have my TX81z anymore, but it was a great device with a lot of potential.

I have a bunch of computers of all kinds. I’ll check out some of the stand alone apps. Specifically, I’m looking for a patch editor in Pure Data. It seems like something I could do in a week or so but checking here first.

I uploaded it here if you want to check it out. It’s a standalone. I tried all of them and this was the easiest to use.

https://we.tl/2qJmNOcquS