DIY musical instruments are their own thing entirely, but if you're looking for a place to start, Adafruit has a guide to building your own MIDI controller using an Arduino. The OONTZ uses a 3D ...
[Shantea] needed a DJ controller. While there are commercial controllers out there, none of them fit what he was looking for. He solved the problem by building the Tannin DIY MIDI controller. Tannin ...
MIDI controllers can be relatively expensive depending on feature sets and requirements, so Instructables user [fraganator] went about building one on his own for just under $100. He originally wanted ...