DIY Time Part 1: Arduino USB Midi Converter | Studio Thorn
Building a custom USB MIDI controller | oliver thurley
Let's Build an SN76489 USB MIDI Synth With Arduino Nano - Arduino Project Hub
USB MIDI Controller on Arduino / Sudo Null IT News
Building a Basic Midi Controller Part 1 - Easy 3 Pot (Potentiometer) Arduino Uno Effects Midi Controller (Serial-USB)... Quick,easy and Cheap! : 7 Steps (with Pictures) - Instructables
Arduino (Teensy) USB MIDI foot controller for Katana amps
USB Midi Foot Controller Help - Audio - Arduino Forum