Though it is definitely not the case anymore, the southern reaches of the Champagne region were neglected for a long time.  There were very destructive riots in the early 1900s, staged by the growers from this region, in order to be made part of the official appellation.  This rebellious, independent spirit can still be found in the winemaking today.  Not as bound by the traditions of the rest of the region (yet still within the parameters of champagne production), and benefitting from soil that has more in common with Burgundy (immediately to the south), the winemakers here are exploring terroir and providing us with great new ways to experience what it is possible to produce within the larger appellation.  Pinot Noir does particularly well in these parts and these producers are giving us new ways of looking at its role in champagne.  And, as this tasting falls on Bastille Day, you might even get to see a little sabrage - “off with its head”, indeed.