Always the focal point in modern times for momentous political, social and cultural upheaval, Berlin has continued, since the fall of the Wall in 1989, to be a city in transition. As the new capital of a reunified Germany it has embarked on a journey of rapid reconfiguration, involving issues of memory, nationhood and ownership.
Bertolt Brecht, meanwhile, stands as one of the principal thinkers about art and politics in the 20th century. The "Street...