Hi Brian
I use a slightly different setup, but similar in that I control Cantabile from my LivePrompter tool on a tablet via wifi - see here.
The key to this is to be able to send MIDI program changes (and bank selects) to Cantabile, which then takes care of everything else. I do this via rtpMIDI, which allows to send wireless MIDI from my (Windows) tablet to my Cantabile PC.
Not sure how your MobileSheets App sends MIDI data, but could you get it to send these program changes to Cantabile directly? Don’t know if there is an option to send MIDI data wirelessly from Android to your Cantabile laptop. How do you currently send program changes from your Android tablet to your Krome? Maybe use this mechanism to send the program changes to Cantabile instead; then attach the Krome to Cantabile.
As I understand, @brad is planning to build a network server into Cantabile at some point in time. This would allow to build an Android app that controls Cantabile directly over the network, without the need to send MIDI. But no idea when this will be available, so I suggest you try the above approach…
Cheers,
Torsten