Marius Constant, born in Romania and later making France his home, was a prolific composer and conductor whose work spans the realms of classical and avant-garde music. His career was marked by a deep involvement in ballet, serving as the Music Director for Roland Petit's Ballets de Paris for a decade, during which he composed celebrated scores such as "Cyrano de Bergerac" and "Nana." Beyond the ballet world, Constant is perhaps best known for his iconic guitar theme for the American television series "The Twilight Zone," a piece that has become synonymous with the show's eerie and thought-provoking atmosphere. Constant's contributions to contemporary music were further solidified with the founding of Ars Nova in 1963, an ensemble dedicated to the performance of modern compositions. His extensive body of work includes a variety of pieces for different instruments and ensembles, reflecting his versatility and innovative spirit.