The Baroque period saw developments in musical notation and new instrumental techniques. It was characterized by elaborate, ornamental melodies that were difficult to sing, and complex counterpoint textures alternating between loud and soft dynamics. New genres emerged such as the concerto, fugue, oratorio, and concerto grosso. Notable composers from this era included Johann Sebastian Bach, known for his organ and orchestral works, Antonio Vivaldi famous for his violin concertos, and George Frideric Handel remembered for his operas and oratorios including "Messiah".