portmidi: portmidi (Platform Independent Library for MIDI I/O) portmidi: portmidi: PortMidi is a library for software developers. It supports real-time portmidi: input and output of MIDI data using a system-independent interface. portmidi: PortMidi is part of the PortMusic project. portmidi: portmidi: portmidi: portmidi: portmidi: portmidi: