[Joonas] became frustrated with cheap but crappy MIDI to USB converters, and the better commercial ones were beyond his budget. He used a Teensy LC to build one for himself and it did the job ...

【 1-in 6-out】The MIDI Thru-6 Box provide 1 MIDI in and 6 MIDI out midi interface. Smooth MIDI signal, No interference, no delay. 【 Standard MIDI Channels】MIDI 5-pin Interface, with ...

It can connect via a standard MIDI cable and then be used to control anything you want. The only thing missing is the ability to transmit velocity data, but that’s certainly not a deal breaker.