I built a small tool to use a USB MIDI controller with the OP-1 via a Raspberry Pi : r/OP1users
MIDI In Over UART on Raspberry Pi - YouTube
PiMiDi: a Raspberry Pi Midi Box, or How I Learned to Stop Worrying and Love MIDI : 5 Steps - Instructables
Tao etc.: A $15 MIDI host
Raspberry Pi Plays A MIDI Tune Wherever You May Roam | Hackaday
On USB latency
Raspberry Pi as USB MIDI Host – RasterWeb!
A low-cost USB to serial MIDI converter using an RP2040 and CircuitPython # RaspberryPi #CircuitPython @Raspberry_Pi @sandyjmacdonald « Adafruit Industries – Makers, hackers, artists, designers and engineers!
MIDI Tutorial - learn.sparkfun.com
Raspberry Pi as USB MIDI Host - Eunjae Im
How to use a Raspberry PI as a USB MIDI host - YouTube
Using a Raspberry Pi as a MIDI USB/5-pin bridge
Test This New Raspberry Pi Low-Latency Audio & MIDI Interface : Ask.Audio
USB HOST midi interface with Raspberry Zero — Synthstrom Audible
usbmidi / Raspberry Pi Controller
Raspberry Pi MIDI I/O - Science DIY
GitHub - oxesoft/rpi-midi-ble: Raspberry Pi 3 as an USB-MIDI over BLE-MIDI device