Hi Frieder,
I connect the keyboard via USB to the iPad by the camera connection kit.
So basically, with the keyboard, I can only record the one sound, piano. I assume this is because it is on channel one on the midi. On the keyboard, I have no control on what sound is mapped to a specific midi port, I was assuming this should be done by cubasis. I know on other midi software, you can select the instrument by the software and this will tell the keyboard what sound to play.
Does this make sense?