The Incredible Sounds of the Synclavier II

via this auction

"Ultra rare private pressing demo record on clear blue vinyl, an artifact of electronic music history originally given out to prospective buyers of this innovative classic synth. It contains a montage of brief melodies and unique sound effects showing off the amazing capabilities of this system that combined sampled and FM synthesized sounds and was designed by legendary electronic composer Jon Appleton at Dartmouth College. The music and programming on this disc is credited to Denny Jaeger and Bill Keenan, plus there is an excerpt of a synthesized version of Vivaldi's Four Seasons by Patrick Gleeson (member of Herbie Hancock's 70s-era electric funk band). The Sync II has featured prominently in the recordings of Pat Metheny, Michael Jackson (who pretty much swiped the synth intro to "Beat It" from this lp!), Laurie Anderson, Siouxsie & The Banshees, Soft Cell, Marc Almond, Bronski Beat, ABBA, Genesis, Chick Corea, George Duke, Sting, Tomita, and Stevie Wonder."