Bach, Vivaldi, and Handel are all renowned Baroque composers. Johann Sebastian BACH was a German composer and musician of the Baroque period who is known for his works in both sacred and secular music. Antonio Vivaldi was an Italian Baroque composer, virtuoso violinist, teacher, and priest. George Frideric Handel was a German-born British Baroque composer who is best known for his operas, oratorios, and concerti grossi.