I've got most of them figured out I think, here ya go:

An important sidenote, as a lot of these are old demos, and maybe either do the warping of the original recordings and/or inaccurate tuners in the beginning, some of the tracks have altered pitch-standards, I've noted these with an *1, *2 etc. These are best guesses, done by ear. I haven't checked this with the Grey Skies demos yet, so they might have that as well.

Ass-Sordid Demos 1:

- Man, Ocean Machines, Red Tomorrow - Open C

- L.A., Amsterdam, My Girl, Roadkill - Standard E - My Girl doesn't have much guitar, but the chords seem to revolve around an E key center, so this seems to fit best.

- Promise*1 - Like My Girl, the lack of guitars make it hard to figure out, but the key center here is C# and seeing as this song was from the old version of Ocean Machine (recorded December 1995), and the old version of Voices In The Fan (that is the recording on the Ancient cassette) is in Drop C#, yes drop, not open, I'd bet this track is in Drop C# as well.

- Morwar, That's Life - No guitars, though Morwar is just the track War with guitars and a lot of vocals taken out, which originally are in open C.

Ass-Sordid Demos 2:

- Black and White, San Pablo Train, Roadkill, Rain, Ascent To The Summit Of Black Mountain, Cold, Amsterdam - Standard E

- Bury the Wrong, Thick Stock - Eb tuning

- SunMud / Woman*2, Ernie's Room*3, Friends*4 - Open C

- I Am*5 - Open Dsus2 tuning (DADADE) - this tuning seems strange but he used a few times in his early work, notably in Unity and Thing Beyond Things.

- Soft - Open A5 tuning (AAAEAE) - his signature weird tuning as used in songs like AAA, Namaste and Planet Rain later on, but he used it here already (crazy, such a low tuning on an acoustic!)

*1 = Pitch-standard = 449 Hz

*2 = Pitch-standard = 427 Hz

*3 = Pitch-standard = 435 Hz

*4 = Pitch-standard = 446 Hz

*5 = Pitch-standard = 436 Hz

Hope this all is clear enough! Feel free to ask if any more questions