Music and Time Annotation << Back W.A. Mozart: Horn Concertos – Unknown About Known L.D. Belenov, A.V. Furukin W.A. Mozart is a great composer, two centuries have passed, and his name does not fade, many still find inspiration and comfort in his music. The article will discuss magnificent concerts for the French horn of the genius of the era of classicism. Description of the features of the preserved scores, the history of the writing of concerts, as well as the chronology. Thanks to the friendship of the great composer and great musician performer on the horn of Joseph Leutgeb, we can enjoy great works. Today, concerts for the horn are a treasury of pedagogical and solo repertoire, concerts of various complexity allow students to touch the outstanding works of the era. And soloists can truly reveal the beauty and possibilities of their instrument. Keywords: W.A. Mozart, J. Leutgeb, L. Köchel, horn, concert for horn, concert rondo, score. Pp. 33-37.