For the pianist Philippe Cassard, Franz Schubert (1797-1828) is definitely the one who, according to the epitaph of the poet Grillparzer "made poetry sing and music speak". And yet, how can you capture the profound mystery of Schubert in just a few words? How can you describe the innermost intimacies, the confidence slipped into a chord? How do you bring out the hesitation of a theme to continue on its way, or depict the pain lodged in the depths of a silence? In truth, we should perhaps look for the key to that music in the wonderful melodies that Schubert used to embellish his six hundred poems. A study of the lieder is thus the first stage of this new and highly personal study of Schubert. In it, we discover vast horizons, words—Wanderer, Sehnsucht, schubertiade, Vienna, moderato, Nacht –, familiar names—Vogl, Goethe, Seidl, Mayrhofer— obsessive rhythms which naturally lead us towards the last Sonata: D. 960 in B Flat Major, which, according to Philippe Cassard, condenses the works of Schubert. A final destination where all dreams and aspirations are shattered, where every fear is expressed. Like all the volumes of the Classica Collection, this work on Schubert is supplemented with an index, bibliographical references and a discography. Pianist, Philippe Cassard has devoted a large part of his activities to Schubert’s music. This essay is his first book.