Stefano Landi, a pivotal figure in the early Baroque era, was an Italian composer and teacher whose contributions to the Roman School of music are both profound and enduring. Born in 1587, Landi is celebrated for his innovative work in opera, particularly his groundbreaking composition "Il Sant'Alessio," which is recognized as the earliest opera based on a historical subject. Premiered in Rome around 1631, this opera solidified Landi's place in musical history. His repertoire also includes notable works like "La morte d'Orfeo," showcasing his versatility and mastery of the operatic form. Landi's influence extended beyond his compositions; he was also a respected teacher, shaping the next generation of musicians. His legacy continues to inspire, making him a key figure in the development of Baroque opera. Landi passed away in Rome in 1639, leaving behind a rich musical heritage that continues to captivate audiences today.