Today's Birthday Composer
Mr. Bartók's music is considered modern and does sound different from music written in earlier periods.
Whenever I play my only CD of Bartók's music I think of the UAE in particular Khor Fakkan and the surrounding area. When I had picked up Bartók's concerto for orchestra shortly before leaving for the UAE so that piece closely associates with the UAE.
Here is the Wiki entry on his most famous work.
Anyway, here is the last movement from Béla Bartók's concerto for orchestra. You may recognize the piece from a movie or a television show: