Aida on the floating stage on Lake Constance in Bregenz as seen in Quantum of Solace The festival has become renowned for its unconventional staging of shows. Verdi’ s opera “A Masked Ball” in 1999 featured a giant book being read by a skeleton Picture: AP

Aida on the floating stage on Lake Constance in Bregenz as seen in Quantum of Solace

The festival has become renowned for its unconventional staging of shows. Verdi’ s opera “A Masked Ball” in 1999 featured a giant book being read by a skeleton

Picture: AP