> $ pd -lib /usr/lib/pd/extra/Gem.pd_linux > couldn't open MIDI input device 0 > couldn't open MIDI output device 0 > opened 0 MIDI input device(s) and 0 MIDI output device(s). > /usr/lib/pd/extra/Gem.pd_linux: can't load library try: pd -lib gem (or Gem) add -path <library path> if nescessary see also: http://www.crca.ucsd.edu/~msp/Pd_documentation/x3.htm#s4