My favourites in no particular order:
Anthony Phillips (ex Genesis) - The Geese & The Ghost
Bellowhead (English folk big band!) - Burlesque
Chris Isaak - Wicked Game
Deep Purple - Machine Head
Focus - Moving Waves
Genesis - Wind & Wuthering
Stephane Grapelli & Yehudi Menhuen - Tea for Two
Jethro Tull - Aqualung
John Sangster - Landscapes of Middle Earth
Mannheim Steamroller - Fresh Aire II
Michael Franks - Tiger in the Rain
Michael Franks - Live with Crossfire
Al Stewart - Year of the Cat
Al Stewart - Between the Wars
Mike Oldfield - Tubular Bells II
Pink Floyd - Dark Side of the Moon (et. al)
Steely Dan - Everything Must Go (et. al)
Vivaldi - Gloria
There must be others but I've forgotten
