children's chorus of the prague national theatre 布拉格国家大剧院儿童合唱团

Czech children’s choir. Established and led by Jan Kühn with Markéta Kühnová in 1932, known under this name since 1942. Since 1967 led by Jiří Chvála. Also known as “Prague Philharmonic Children's Choir”, sometimes also credited as “Children's Chorus Of The Prague National Theatre” when performing atThe National TheatrePrague.
https://www.discogs.com/artist/2092890-Childrens-Chorus-Of-The-Prague-National-Theatre