A ballerina, a wrestler and a mountain climber walk into a bar… It could easily be a joke, and with jovial raconteur Erni Loosen telling it, it would definitely make you laugh. But actually, Erni is describing how he sees the Grosses Gewächs wines grown on Wehlener Sonnenuhr, Ürziger Würzgarten, and Erdener Treppchen. The first, with its classic Devonian blue slate, is the dancer: elegance, finesse, delicate acidity. Würzgarten, with its rare red volcanics, is the wrestler: muscular, rocky, rounded. And then, the oxidised red…