Guillaume LEKEU (1870-1894). - Andromeda. Lyrical and symphonic poem for soloists, choirs and orchestra. Texts by Jules Sauvenière. Reduction for piano and voice. Liège, Veuve Léopold Muraille. Small in-4, bound in blue chagrin. - Three Pieces for Piano. Liège, Veuve Léopold Muraille. In-fol. Rare signed first editions of this musician who died at the age of 24. Autograph dedications to his pupil and friend, the future musicologist Robert BRUSSEL (1874-1940) : " To Robert Brussel with the assurance of a complete and lively sympathy, with the most sincere encouragement G. Lekeu 6 April 93"; and "To Robert Brussel very friendly Gme Lekeu 20 April 93". Attached is a L.A.S. from Guillaume LEKEU to Mme Brussel, 12 July 1893 (2 p. in-8, envelope), thanking her for the "calm and restful" days spent at La Bergette: "it is to you that I owe my return to work full of courage, confidence and health"; he speaks of Robert, "my charming friend and - at least I dare to hope - my conscientious pupil"... Plus a small L.A.S. to Robert Brussel at whose house he forgot his overcoat (1 p. in-12, adr.; plus a self-addressed envelope). Also enclosed is the first edition of Lekeu's (unfinished) Quartet (E. Baudoux, [1895]), with a letter to R. Brussel from Guillaume Lekeu père: " Souvenir de notre Guillaume à son élève et ami Robert Brussel "... ; 7 letters concerning Lekeu (Carlos SCHWABE, Romain ROLLAND, Lekeu family...) ; 2 photos of Lekeu's portrait by S. Detilleux, announcements, concert programmes, brochures, etc.