New York City Ballet
NYCB still has the largest repertoire by far of any American ballet company. It often stages 60 ballets or more in its winter and spring seasons at Lincoln Center each year, and 20 or more in its summer season in Saratoga Springs. City Ballet has performed "The Nutcracker", "Romeo and Juliet", "A Midsummer Night's Dream", and many more. City Ballet has trained and developed many great dancers since its formation. Many dancers with already developed reputations have also joined the ballet as principal dancers.
School of American Ballet
Students are chosen through audition. Children's division auditions for the 2007-08 school year included six-year-olds for the first time; previously, the youngest students were required to turn eight in the year they began their studies. Children in the younger divisions are able to perform in various ballets with the company including George Balanchine's famous "The Nutcracker", "A Midsummer Night's Dream", Peter Martins's "Swan Lake", and "The Sleeping Beauty". The most advanced students perform in a workshop at the end of each year where the heads of many prestigious ballet companies choose several of them to join their companies, including New York City Ballet. This started in 1965, when Alexandra Danilova sought and received approval from Balanchine to produce a spring workshop performance for the students. These workshops have become an important preview for many outstanding dancers.