Which concert, performed by the Vienna Philharmonic, is broadcast worldwide every New Year’s Day?

The concert performed by the Vienna Philharmonic and broadcast worldwide every New Year’s Day is the Vienna New Year’s Concert.

The program is best known for music by the Strauss family, especially Johann Strauss II, whose waltzes and polkas form the core of the traditional repertoire. It is held in the Golden Hall of the Musikverein in Vienna, Austria, and is conducted by a guest conductor who changes from year to year.

The first concert took place on December 31, 1939, during the Second World War. After the war, the regular New Year’s Day format became established, and the concert developed into an international broadcast tradition.

The program conventionally ends with the “Blue Danube” and the “Radetzky March.” Those pieces are strongly associated with the event, but the official concert title refers to the whole annual performance, not to either individual composition.