SchwanSongs is a music-video-photography-software studio run by Eduard Schwan. Eduard built electronic synthesizers when he was a teenager and then discovered computer programming. He has since developed software for industry and education and retail markets. He also worked for many years with the team developing the freeware ray-tracer "POV-Ray" (used to create these videos) and commercially published a book on how to use it (through Waite Group Press.) His love of classical and synthesized music has greatly broadened his musical interests. This video, Four Worlds, combines his love of programming and his musical talents to create a world of fun and thoughtful introspection.