Just wanted to say it is great to read discussions talking about musicians I know nothing about - don't stop talking....
Mathias Grassow does have a huge discography - two of my favourites are Dissolution (very dense music) and True North with Amiri Baghiri.
you may also like Upuaut (with Oophoi and Baghiri), Sphere, Space and Eclipse.
I'll have to check those out. Oophoi is another one whose huge discography is something I've only scratched the surface of. I do have Upuaut and like that one quite a bit.
The Spirals Of Time is a must if you haven't heard it yet.