This library allows an Arduino board with USB capabilities to act as a MIDI instrument over USB. The library is based on PluggableUSB, so is only compatible with Arduino IDE 1.6.6 and newer.
Furthermore, since PluggableUSB only targets boards with native USB capabilities, this library only supports these boards (eg. Leonardo, Micro, Due, Zero and so on)
For more information about this library please visit us at http://www.arduino.cc/en/Reference/MIDIUSB
Load the correct driver (sudo modprobe snd_seq_midi)
Flash the board with MIDIUSB_loop example, then execute aseqdump -l; the output will be something similar to
Port Client name Port name 0:0 System Timer 0:1 System Announce 14:0 Midi Through Midi Through Port-0 20:0 Arduino Micro Arduino Micro MIDI 1
Port 20 is the one we’ll use in the following examples.
Start fluidsynth inside a shell with a soundbank
fluidsynth --server --audio-driver=alsa -o audio.alsa.device=hw:0 ~/Synth.SF2In another shell, execute
aconnect 20 128
to connect our MIDI device with fluidsynth
Then, execute
aplaymidi --port=20:0 ~/some_midi_file.midand the file will be played after a complete roundtrip to the board.