Valentin Bajou is a French cellist and conductor. In the context of his activities as a performer, he carries out several research projects: for him, the musicological approach is inseparable from the performer's approach, whatever the music concerned. The challenge is to question the notion of "historically informed music", which is too restrictive and divisive: historicity is not an end in itself, but the natural fruit of a healthy and profound reflection on the status of the performer and his or her responsibility in today's world. His repertoire extends from the 16th century to the present day. A complete musician, he is neither a "baroque cellist" nor a "modern cellist", but claims the status of a contemporary musician, whose field of activity reflects the complex reality of today's music world.