Scott, sending midi to the ipad is not a problem...it is having an app that will open a PDF or text file in RESPONSE to a midi command is the issue....
Also, text based charts are VERY restrictive in that all you can really get is a chord structure and lyrics...you cannot get proper charts as in with dots and notation in a text based document.
Far better to use the PDF format which does all!!!
The PDF app that Michael uses to link OpenText, does not actually respond to a MIDI message, it is OpenText which receives the midi from the Yamaha, and it then sends a command - not midi- to the PDF reader to open the next PDF in the list...(maybe a Windows batch file command? I am not really sure how he set it up)
@ John C....you can use this same system on a laptop, using an app called Music Reader as it also allows you to link a MIDI file to a chart, and then transmit it to the Korg...BUT in my view Music Reader, although being in an advanced version stage, is still NOTHING on the apps available for the iPad.
Not to mention the ease of use and crystal clarity of the iPad screen resolution...even better now with the inclusion of Retina on iPad 3....
Dennis