At the CRR de Cergy-Pontoise in particular, composition teachers and students on their way to becoming professionals work on writing pieces that are then rehearsed and premiered by the soloists of the Multilatérale ensemble. Several workshops are organised around different themes, allowing students to take part in a variety of exercises. The theme of this first composition workshop will be "music in images". This time, the students will write a piece to illustrate short films.