If any of you KN7000 owners have tried to transfer a batch of MIDI Files directly from a PC folder to an SD Card, using a Card Reader/Writer and just copying or Drag/Drop, you will have found that the KN7000 does not recognise the MIDI files.
I have added a procedure to the Tech Tips page of my website (Tip number 30) which explains how to transfer a batch of MIDI files to an SD Card, using your PC.
http://www.willumspages.co.uk/page10.html I am indebted to Alec Pagida for supplying this procedure and allowing me to add it to my website.