interesting links

Theater und Philharmonie Essen GMBH - http://www.theater-essen.de
Vlaamse Opera Antwerpen - www.vlaamseopera.be
De Nederlandse opera Amsterdam - www.dno.nl
Prague Symphony Orchestra - www.fok.cz
Prague Radio Symphony Orchestra -  www.rozhlas.cz/socr/portal
Prague National theatre - www.narodni-divadlo.cz
Brno Philharmonic Orchestra - www.filharmonie-brno.cz