gdsports:
I am not sure what you are doing but if you have an Arduino Micro (https://store.arduino.cc/usa/arduino-micro) or any board using the 32u4 microcontroller, you do not need to hack a USB MIDI converter.The 32u4 has a native USB controller. Use the Arduino MIDI USB library to send and receive MIDI over USB.
Ah okay, thanks! I was just looking towards that very library. I'm just following what the original maker, Dean, suggested doing. The code is here if what I'm doing makes sense. I'm currently having problems detecting the board, even though there's currently an LED lit up on both the cable's subcircuit and the Micro itself. Feeling stuck in a bit of a rut! Really appreciate your help though.