Here's a patch that will turn your APC Mini as kind of MIDI Guitar with (EA)EADGBE tuning.

Quick YouTube overview:

And the patch:

PD-patch is in 3 files: APC-MidiG.pd, APC-MidiBin.pd and APC-VeloBin.pd. First one is the main file, other two are used to keep the main page clean. Use MIDI Port 1 for communicating with APC and MIDI Port 2 output for sending to DAW.