that's a cool device. I think it may only provide MIDI out from an existing keyboard rather than a MIDI input for say a SIEL MONO etc

hi all been making myself up a small RAM cartridge for my JX8P, a M16c copy I think I have the basics ok A0 to A0 etc I started to get greedy and though about using a larger EPROM and accessing 4 banks So on a 64k IC like the FM16w08 rather than the original to access the higher banks I was reading ...