The aim of this article is to present the philosophy of art of Susanne Knauth Langer (1895-1985), an American philosopher relatively unknown until quite recently in the French-speaking intellectual world in Europe. I shall attempt to bring together this philosophy, the various parts of which are to be found in a number of works published in the course of many years. I shall examine some points of comparison with Cassirer's theory of symbolism which Langer claimed to be following. I then examine the paradigm of music which illuminates her philosophy of art, presenting what she calls "the life of feeling" and "symbol art". The article concludes with the uncomfortable position of this philosopher who found herself at the crossroads of Continental philosophy and twentieth-century analytical philosophy, a position that could explain why her thought did not cross the Atlantic sooner (transl. J. Dudley).