On the periphery of that group, if you want something genius, check out Motohiko Hamase (especially “Notes of Forestry”). Squarepusher-like electric bass skill over minimalist classical loops. Never heard anything like it.
Music For Nine Post Cards is also a real gem: https://www.youtube.com/watch?v=zyY7NU4cbtY.
Much respect to the uploaders giving these albums a digital rebirth.
However Yoshimura has been a legend among collectors and in ambient circles long before Youtube was around and I think we should give greater credit to the countless labels that work on re-issuing these long lost gems and making them widely available. In this particular case it's Empire of Signs and Light In The Attic: https://lightintheattic.net/releases/3538-music-for-nine-pos...