The child actors were actual members of the Vienna Boys Choir who perform several traditional Austrian songs throughout the motion picture.
[2] Tony Fiala (played by Vincent Winter) is a working-class boy whose greatest desire is to become a member of Vienna's most famous choir.
Peter's jealousy will prompt him to do everything in his power to ruin his rival's public performances and his good image as a boarder, to the point of endangering Tony's life.
Besides the Lieder, there are some international scores and instrumental music: The film was released on DVD as part of the Disney Movie Club.
Although it had limited distribution in theatres, the film aroused the interest in choral institutions and in the Vienna Boys' Choir itself.