Thomas Schreiner was project manager and editor for I Himmelen which is published by Edition Peters.
I Himmelen is the largest collection of Scandinavian choral music for the German speaking market. It contains works by composers like Edvard Grieg, Hugo Alfvén, Jean Sibelius, Knut Nystedt, Sven-David Sandström, Jaakko Mäntyjärvi and Fredrik Sixten. The contents is mainly sacred and many of the works have been translated to German specially for this edition.
The video below contains comments from participants at a choir meeting in Germany where I Himmelen was presented and used for the first time.