Possible Clues:

• German city where b-bigwig turns up
• Good, in Paris North is where Beethoven started out
• Beethoven's birthplace, old capital
• World capital of 1949-1990
• Old capital that's good in France before the 1st of November
• Rhine port
• Former European capital city
• Former national capital
• German city that's not entirely attractive to Scots
• East Berlin's counterpart during the cold war