[pax_eterna]

Yeah, MIke. Upon reflection I suspect you are correct. It works 100% with iOS on the iPad. Must be to do with the "limited" support audio and MIDI has in android 5.1.1 using the connector port. I CAN still use Android for shows if I use a separate tablet (I also have a Nexus 7) to run only audio, and use the big tablet for charts and MIDI control out to external devices. Makes it awkward to do "dynamic" selection of songs, but it will work.

OR.....just stick to iOS and the iPad haha! Decisions, decisions! Of course it would be easier if I could upgrade the HP to Nougat (or even Marshmallow) as I have heard comments that this support (audio/midi) is much better in those versions that in Lollipop (5.1.1)