Piece with sudden changes in dynamics?

Look in the Baroque period. Although there's a little bit of a myth about "terraced dynamics," it's true that they loved dynamic contrasts. How about the beginning of "Summer" from Vivaldi's Four Seasons? a href="http://youtu.be/g65oWFMSoK0" rel="nofollow"http://youtu.be/g65oWFMSoK0/a