On November 9th, the Berliner Philharmoniker gave a memorial concert to mark the fall of the Berlin Wall precisely 25 years ago. In remembrance of the victims of the Wall, the orchestra, conducted by Sir Simon Rattle, performed Karol Szymanowski’s Stabat Mater followed by Beethoven’s Ninth Symphony at the Berliner Philharmonie. Digital microphones from Sennheiser and Neumann were used to…