You can buy a hat for the pi that allows you to connect via serial to a mister fpga such as this one https://misterfpga.co.uk/product/mister-fpga-mt32-pi-hat-v2

You can buy a hat for the pi that allows you to connect via serial to a mister fpga such as this one https://misterfpga.co.uk/product/mister-fpga-mt32-pi-hat-v2-1/ https://misterfpga.co.uk/product/mister-fpga-mt32-pi-hat-v2-... From what I've seen it works great with the old computer cores. I've only gone so far as to emulate Roland over network on a PC but even that works pretty great with the Mister. Thought y'all might be interested in one of the more common ways I see this being used.