RtMidi 
A safe wrapper around RtMidi that provides a common API (Application Programming Interface) for realtime MIDI input/output across Linux (ALSA & JACK), macOS (CoreMIDI & JACK), and Windows (Multimedia Library) operating systems.
A safe wrapper around RtMidi that provides a common API (Application Programming Interface) for realtime MIDI input/output across Linux (ALSA & JACK), macOS (CoreMIDI & JACK), and Windows (Multimedia Library) operating systems.