Make Your Own MIDI Controller With An Arduino | Hackaday
Turn an Arduino Uno into a MIDI Controller: Guitar Pedals - Hackster.io
Making MIDI Controller consisting of 25 potentiometers & 33 buttons - Audio - Arduino Forum
Building an Arduino MIDI Controller - Leandro Linares
Unopad - Arduino MIDI Controller with Ableton - Hackster.io
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