To participate in the evolution of " Cantatas in Saint-Louis " (created in 1984 to Saint-Louis-en-l'Ile), joined around Georges GUILLARD of young artists stemming from diverse educational activities as students in the University Department of Music and Musicology (Sorbonne Paris-IV), student in the Department of Early music of the Upper Academy of Paris-CNR, or young amateur and professional musicians.

  Depending on the circumstances and program, the group includes a vocal ensemble, an instrumental ensemble playing on former or modern instruments.