In literature studies several authors have been researching on how text (verbal) and image (visual) can relate to each other, and words like "synergy" and "imagetext" have been used in the attempt to describe the narrative discourse, which so often appear in picture storybooks. In musical research, narrative deals with several questions linked either to musical: perception, reception, composition or performance. The starting point of this investigation was Wie schmeckt der Mond? by Michael Grejniec, a children's picture book. This paper explores the way the book was written and illustrated, and how a new music orchestral piece moon chunks was composed. By focusing on specific compositional ideas, the piece was shaped to highlight different aims, and the musical narrative was used in a plural musical-verbal-visual interaction, in order that the new music language would better communicate with the younger audience. Conclusions were drawn from the analysis of the composer's own artistic practice and 8 interviews held with random children in the audience