Dave (Phillips), I had to alter a file for libgig: [davec]libgig $ diff src/gig.h.org src/gig.h 588c588 < class Instrument : protected DLS::Instrument { --- Crude but effective for compilation (but see below). Also, even though libgig is installed, qsampler config appears not to find it. It's installed in /usr/local/lib/libgig. Another problem is that qsampler cannot actually load a *.gig file: gig::Engine error: Failed to load instrument, cause: Can't open "NON_MODAL '/usr/local/dosh/Gigs/etc...'" I have been assuming that this is libgig-related, or maybe I should say libgig-qsampler interface-related. I have not tested libgig by itself. After reading Rui's message, I'm not so sure what the problem is. Best regards, Dave. P.S. I'm going to be sans computer for a few days, so won't be able to respond to followups.... but I hope this helps someone.