In my composition "cockchafer, fly", I used some historical sound documents as a starting point and to allow associations of ideas for a musical development throughout the piece. The title of the composition is drawn from a children's song whose text expresses the sad situation after the first and the second world wars: "Cockchafer, fly, your father is the war, your mom is in Pom'ranie, Pomerania is destroyed by the flames, Cockchafer, fly. " Towards the end of the composition, this song will appear again with another text: "Sleep, my little sleep, outside there are two sheep, one black and one white, and if you do not want to sleep black will come and bite you. " In addition, I used a very famous Lale Anderson song: "Lili Marleen", in correspondence, in collage with an old student song: "boy, forward, even if it is for the last time". With these two quotes, I want to show how the spirits of men could be manipulated. These quotes are for me only a starting point that allows me to reflect and develop my personal musical point of view. At the end of the composition, I take the sentence of a poet: "a …