Köln's own Karlheinz Stockhausen, I just learned, has passed away. Stockhausen was born just outside of Köln, he studied at the Universität zu Köln (like Kelly), and he created and in 1956 debuted one of the most famous pieces of early electronic music here in Köln, which you can enjoy below.
Karlheinz Stockhausen - Gesang Der Jünglinge (1955)
Interestingly, Stockhausen's death fell on the same day of the year as Mozart's - which I know only because my German teacher, Herr Kunert, burned a candle in class Wednesday in Mozart's honor. I've discussed Stockhausen with him once before, and let's just say I'd bet against next year's candle being shared with he of the Helikopter Streichquartet.