The '''Vienna Boys' Choir is a choir of boy soprano, trebles and alto s based in Vienna. It is one of the best known boys' choir s in the world. The boys are selected mainly from Austria, but also from many other countries. The choir is a private, Non-profit organization, not-for-profit organization. There are approximately 100 choristers between the ages of ten and fourteen. The boys are divided into four touring choirs, named for Bruckner, Haydn, Mozart and Schubert, which perform about 300 co... Read More