Gondwana Voices is Australia's internationally renowned children's choir for treble singers aged 10-16. Voices performs with Australia's leading music ensembles such as the Australian World Orchestra, tours internationally, performs at national events and records for ABC Classics. The Gondwana Choirs 21st Birthday Concert took place in 2010 in the Sydney Opera House. This concert is the culmination of a two week National Choral School, which includes Gondwana's other choirs and offers an intensive two weeks of rehearsals, performances and workshops with the leading figures in Australian choral music. http://www.gondwanachoirs.com.au/