The notable composer recognized for creating some of the first known musicals is Stephen Sondheim. His innovative approach to musical theater transformed the genre, emphasizing complex characters and rich storytelling through song. Sondheim’s works, including “West Side Story” and “Sweeney Todd”, broke traditional molds, merging music, lyrics, and narrative in groundbreaking ways. His influence extended beyond composition, as he mentored many emerging musical theater artists and reshaped the landscape of Broadway. Sondheim remains pivotal to modern musical theater, showcasing the profound capabilities of narrative through song.