Korg iMS20 controlled by Korg Legacy MS20 hardware from Chris Carter on Vimeo.
"If you have a old Korg Legacy MS20 USB controller in a cupboard then dig it out and dust it off because it works as a 1-1 controller with the Korg iMS20 iPad app - no joke.
Even patching with physical cables on the controller is mirrored on the iMS20 app.
Caveats:
naturally you need the Apple USB iPad adaptor but you also have to connect the MS20 controller via a powered hub. Not all powered hubs seem to work with this combo so try a few.
Please don't ask me where to get the MS20 controllers from, they went out of production about 5 years ago.
More details on my Blog here: tinyurl.com/5stqoqe"
KORG iMS-20 - KORG INC.
iPads on eBay