Hmn, I've never heard of anything from that particular Nirvana...definitely going to check them out Molecules.
Zyma - Thoughts (1978)
Avant-garde jazzy rock from Germany, with hints in various places of the Canterbury Scene. You can even HEAR the bong-smoking in the background on a track or two, lulz!
Willowglass - Book of Hours (2008)
Willowglass, a moniker for a single guy named Andrew Marshall (who plays all the instruments except for drums, and does all the mixing himself), attempts to recreate the sort of genuine symphonic lushness you hear on Camel's
Snow Goose and
Moonmadness on this instrumental album, and it exceeds in spades while still sounding original. Highly recommended to everyone!