The former German capital’s concert hall reopened in gleaming style after nine years of painstaking restoration

Passenger pigeons, sparrows and the threat of extinction are the subject of elegiac concerts where voices swoop and soar

A rich collaboration between an acclaimed French ensemble and a young English choir is rewarding; plus, St Barts’s Great Hall returns to its full glory

Mob rule and a marauding bear feature in sparkling revivals of two of the composer’s lesser-known gems. Plus, a masterclass in high-speed Rossini

Wagner’s great work sails into the modern age in the strangest of venues: a massive working quarry near Vienna