A showcase for Katowice is the "Camerata Silesia" – an ensemble aimed at promoting the city in Poland and overseas. Classical music also plays a significant role in Katowice and the city annually becomes a venue for numerous classical concerts and festivals. The list includes an International Festival of Young Music Competition Laureates, Grzegorz Fitelberg International Competition for Conductors, Chamber Music Festival, Ars Cameralis Festival and Katowice's opera, operettas and most of all ballet. In 2010, as part of the Chopin Year Celebrations, Katowice held the International Chopin Knowledge Challenge, which took place at the Spodek hall.