While Italy was busy acquiring its status as the center of the 17th and 18th century musical world, composers and performers in north Germany, Scandinavia, England, and Holland were busy developing their own unique sound, blending Italian influences with a distinctly northern sensibility and style. San Francisco’s free-spirited early music powerhouse Agave Baroque offers up this program of fiery, bold, and inventive works by Buxtehude, Sidon, Peterson, Blow, and Roman.