Russia, history, contacts between Western and Oriental cultures and people, music
You!
Ancient Greek (Ensemble De Organographia, Musica Romana, Atrium Musicae De Madrid, Ensemble Kerylos), Medieval, Classic, Folk, Art-Prog-Rock (Yes, Jethro Tull, Marillion, Rick Wakeman, Alan Parsons, Manfred Mann, Pink Floyd, Mike Oldfield, Robert Berry, Steve Thorne), pop (Enigma, Bee Gees, Deep Forest), electronic music (Vangelis, Jarre, Tangerine Dream, Michel Huygen, Pascal Languirand, Robert Rich, Nadia Sohaei, Manuel Gottsching). Of course The Beatles.
Sources for my researches, Milorad Pavich, Amin Maalouf, Viktor Astafiev and... SF and fantasy (Ray Bradbury, Clifford Simak, Robert Sheckley, Stanistlaw Lem, Paul McAuley, George R.R. Martin)