The OCCO (Cascais & Oeiras Chamber Orchestra, Orquestra de Câmara de Cascais e Oeiras) is an ensemble founded by the Cascais and Oeiras municipalities and by the Portuguese Ministry of Culture. The orchestra has a season of more than sixty concerts per year, also performing at many venues throughout Portugal and presenting various concerts abroad. OCCO has a core of twenty strings and a fixed group of wind musicians. Within its extensive and comprehensive repertoire, OCCO includes works of composers from various eras and styles, always promoting Portuguese composers. It represented Portuguese music in the General Assembly of European Festivals in Estoril, September 1998, in Brussels, 2002, and in Valência, 2006. OCCO received soloists such as Paul Badura-Skoda, Lidia Mordkovitch, Alberto Lysy, Márcio Carneiro, Ana Bela Chaves, Darco Brlek, Boyan Vodenicharov and Maria Luísa Cortada, among others.