Hi Vince,

I just tried it with my Audya5 connected to an Android-Tablet.

My Audya is set to send and receive registration-Infos on MIDI-Ch 16.

It´s mandatory that your registrations are NUMBERED !

Following Messages are sent to the tablet :

Controller 0 ( Bank select MSB ), Value 0
Program Change ( Registration number )

So, if you want to change to Registration 0127 :

BankSelect MSB 0
ProgramChange 127

If you want to change to 0128 :

BankSelect MSB 0
PrgChange 128 0

If you want to change to 0129 :

BankSelect MSB 1
PrgCHange 1

And so on...