Which Vienna concert, performed each New Year's Day, features music by the Strauss family and began in 1939?

The concert performed in Vienna each New Year's Day and begun in 1939 is the Vienna New Year's Concert.

The Vienna New Year's Concert is performed by the Vienna Philharmonic in the Golden Hall of the Musikverein. Its program focuses mainly on music by the Strauss family and related composers, including waltzes, polkas, and marches. The concert is broadcast internationally and is closely associated with New Year festivities.

The first concert took place on December 31, 1939, during the Second World War. From 1941 onward, the performances were held on New Year's Day. The current format developed through repeated annual broadcasts and the long leadership of prominent conductors.

The concert is sometimes described as a New Year's Eve event because it belongs to the holiday season, but its signature performance is on January 1. The “Blue Danube” and the “Radetzky March” are recurring audience favorites, though the exact program changes.