I would think that this is right up the alley of "Harmonic Experience" (see numerous threads in the playing and technique section) type of people, but it just sounds like someone playing out of tune to me or a horror movie soundtrack.
Agreed, regarding the first and third being the better pieces.
Apparently, he built coursed instruments where the extra strings in the courses were not just octaves, but outer partials in the harmonif series. One such instrument may be in use on the second piece, not sure.
He was a contemporary of Harry Partch and just as much of a genius. Dunno why he didn't earn a greater place in music history. I suppose some would argue Partch wrote better compositions and/or was a better self-marketer.
I also like those articles you posted...especially relevant is this quote:
you only become aware of your environment after leaving it and then returning to it- or to use McLuhan's bon mot, "the fish is not aware of the water."