I think I'm with pax_eterna on this. There is no necessity to add/display any numbers, just because there is a set of midi commands being sent to the keybard. When using the files for "other use" - presumably wthout the keyboard connected - the midi commands will simply be ignored.
Graeme
1: Samsung 12.2" SM-P900: Android 5.0.2
2: eSTAR GRAND HD Quad-Core 4G 10.2": Android 5.1
Some of my music here - https://www.soundclick.com/graemejaye
1: Samsung 12.2" SM-P900: Android 5.0.2
2: eSTAR GRAND HD Quad-Core 4G 10.2": Android 5.1
Some of my music here - https://www.soundclick.com/graemejaye