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I think Panasonic's Turbo R MSX systems had a similar module/interface bundled with them. Home computers and PC had lots of cool secrets. Modding must have been a blast.
MSX unofficially supports OPL4, but I just don't know how it works. Like... you don't simply connect your MSX computer to compatible OPL4 devices and they automatically transform your old game's multi-channel soundtrack to something more advanced, right? I'm guessing they just output music that you write, as opposed to reading the notes stored in an existing game.
I love-hate modern PC's. They're rendering many cool specialized devices obsolete. Apparently not even the best hardware synths these days can match the quality of the best software synths (but I refuse to buy a software synth!!!). Modern PC CPU's are more than powerful enough to beat the best specialized synth hardware ;( convenient but boring!
OP: Apologies for going off topic!
