Francois Couperin was a 17th century French Baroque composer. Now, I don't want to pretend like I know from 17th century French composers. But that doesn't mean the spell that "Les Barricades Misterieuses", which I heard for the first time a few weeks back in The Tree of Life, is less all-encompassing than any it might cast over someone classical music-literate. It haunts my waking hours. It reduces me to near-tears in office. And what a tremendous title! What mysterious barricades is Couperin talking about? The piece is so simply and elegantly constructed that barricades are the last thing that come to mind.