Hi,
Not sure you that you really need a card. I guess you find a midi card for an apple II. I think all you need is a midi apple talk like device. It plugs in the seral port in the back. Just a little pig tale type box. I also believe they were used on the early Macs. I picked up mine quite a few years ago on Ebay for $10-15. Just a little larger than an Apple Talk type connector/box.
You may also need a HD or a way to run GSOS with the MIDI driver.
I may be all wrong, If I am some one will surely point it out.
Take Care
Not sure you that you really need a card. I guess you find a midi card for an apple II. I think all you need is a midi apple talk like device. It plugs in the seral port in the back. Just a little pig tale type box. I also believe they were used on the early Macs. I picked up mine quite a few years ago on Ebay for $10-15. Just a little larger than an Apple Talk type connector/box.
You may also need a HD or a way to run GSOS with the MIDI driver.
I may be all wrong, If I am some one will surely point it out.
Take Care