https://www.youtube.com/watch?v=yYurSXWe_yU
figured I should share this. pretty much you just open that file he shows in the video, switch the numbers to an older OS. after you install the driver switch it back to ur current OS and you'll be able to use the SP thru USB for midi purposes. i couldn't get midi thru to send out from this but I could get it to sync with my computer (maschine).
sp555 audio driver install with later OS (mac/windows)
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