Sometime between 1201 and 1232, Gautier de Dargies, a trouvère, or itinerant singer/composer/performer, set a text that laments “the world that is going down, severely going down.” Yet the melody to which he sets that text rises to an extreme height. What does that mean? That whenever something bad happens in a medieval text the melody rises? Not exactly. It is Mundus Inversus at its apogee.
Mundus Inversus means the world inverted. Everything is the opposite of what it should be. Foolish behavior comes to all things, animal, vegetable, and mineral. The apple grows in winter, the flower grows from bud to root, and kings become beggars because capricious Fortune turns the wheel. Today a beautiful town flourishes. Tomorrow a terrible government makes it a place of desolation.