The Vienna Boys' Choir (German: Wiener Saengerknaben) - Tritsch Tratsch Polka (Johann Strauss)The Vienna Boys' Choir (German: Wiener Saengerknaben) - Tritsch Tratsch Polka (Johann Strauss) ++++++ The Vienna Boys' Choir (German: Wiener Saengerknaben) ...is one of the best known boys' choirs in the world and exists more than 500 years...The boys are selected mainly from Austria...and individually interviewed. Known for its exceedingly high vocal standard, the choir has worked with musicians including Wolfgang Amadeus Mozart, Antonio Caldara, Antonio Salieri, Heinrich Isaac, Paul Hofhaimer, Heinrich Ignaz Franz Biber, Johann Joseph Fux, Christoph Willibald Gluck, and Anton Bruckner... ++++ In comparsion to other choirs (e.g. Libera) they are a private, not-for-profit organization. There are about 100 choristers between the ages of ten and fourteen. The boys are divided into four touring choirs, which perform about 300 concerts each year in front of almost 500,000 people...Dr. Eugen Jesser is the choir's president and its director. Gerald Wirth became the choir's artistic director in 2001. (wiki.Org)