Choirs Choir of the Children’s University Cologne Germany Qatar Junior Choir Qatar Gimnazija Kranj Mixed Choir Slovenia Oulaisten Nuorisokuoro Finland Bodra Pessen Girls Choir Bulgaria Youth Choir Marktkirche Hanover Germany Gothenburg Cathedral Youth Choir Sweden Youth Choir of Berlin State Opera Germany Göttingen Boys Choir Germany Youth Choir Vivat Musica Ukraine Youth Choir of the Music School of Vienna Austria Youth Choir St. Marien Osnabrück Germany Children’s Choir April Russia Krasnoyarsk City Children’s Choir Russia Girls Choir Canzone Estonia Girls Choir Skowroneczki Poland Pueri Cantores St. Aegidien Brunswick Germany Christophorus Children‘s Choir Altensteig Germany Amics de la Unió Spain