Desc: Alléluia: Directed by Marina Bourdais, Sébastien Glas. They are a hundred young people, aged 11 to 22, singers and amateur musicians. Some are enrolled at the Bordeaux Conservatory, others have discovered singing to do like their big brother or their big sister, but all are part of the same team: they have two months to prepare the three public performances of Messiah, a popular work. and emblematic of the Advent season. They are ready to devote themselves to this musical and human adventure, guided by the men's choir of the "Opéra National de Bordeaux", some of the professional musicians of the ONBA and their teachers. All conducted by conductor Marc Minkowski. From auditions to the final performance, sharing and exchanges between professionals and young amateurs are at the heart of this documentary which allows you to understand all the pedagogy necessary for the success of this artistic performance. Intergenerational relations are also an issue in the preparation of these performances. We will follow the musicians in their evolutions, their joys, their hopes and their doubts. Let's not forget that they are also - and above all - young people in their mid-teens. The discovery of the Messiah will necessarily go hand in hand with the discovery of a part of themselves. Does taking control of your voice or instrument mean taking control of your body? Is learning a work the way to better understand one's emotions, desires and anxieties?