Some Yes , King Crimson's early work, all of Jethro Tull, Pink Floyd, anything by Mike Oldfield. The Incredible String band... Keith Jarret. Captain beefheart and the magic band, Frank zappa, The mothers of Invention, Bach's well tempered clavier Brian Eno's ambient works
And that's just the Prog-Rock.
Of that list. the favorite songs are Willie the pimp, Tubular bells, Ommadown, Amarok, Court of the crimson king, any Orchestral version of Bourée, the Koln concert, Music for airports,....