[avago]

... or is there anyone who can say that it works?
connection on midi to change programs? (songbook)

if you have a constellation who works - witch cabling do you use exactly?

It works perfect, I use OTG usb mini ploug to the tablet, and on the other end a normal usb B to the Korg.
You have to make some assigments of midi chanel and receive-send commands on the Korg, as you can read it in the manuel.
You can use a power supply with your tablet, if you want to be sure to have sufficient power during long time jobs.