Frühburgunder is only found in Germany and Switzerland. It's a variety that's difficult to manage, just like it's cousin pinot noir. It has a naturally low yield, concentrating the flavours.
Pfalz used to be famous for its white wines - mostly riesling. A significant change in temperature now means it's warm and sunny enough to make red wine. It's very cold in winter, so an early ripening grape is perfect here.