Timely topic - Dusty Groove are promising a CD reissue in April:
"Bill Evans -- Symbiosis (On Demand pressing) . . . CD . . . Around April 20, 2005
Fantastic stuff -- and one of our favorite lost sessions from the 70s! A completely unique Bill Evans album, and one that features him playing both electric and acoustic piano over stunning arrangements by Claus Ogerman. The sound is indescribably beautiful, with a range of moments that span a number of styles -- all of them dark and moody. Evans' playing is at that complex late stage, and Ogerman's orchestrations are completely sympathetic, never intrusive, and offer a brilliant showcase for haunting lines of dark, introspective genius from Evans. In a way, we'd compare this one to some of the more baroque CTI sessions -- or to later work in recent generations by artists like Chris Bowden!"
http://www.dustygroove.com/upcoming.htm