As a composer, Alexander Glazunov was as at home in the late Romantic symphony as he was in chamber music forms. His shorter solo pieces impress on account of their enchanting melodies and their attention to detail, which is also true of the Rêverie for horn and piano. Glazunov was himself a good horn player and played in several orchestras as a young student. It was at this time that Glazunov composed this highly romantic work in which he showed off the melodious qualities of this instrument to their best advantage. It is an effective recital piece, even for advanced pupils, and is being published for the first time as an Urtext edition; alongside the first edition we also consulted Glazunov's autograph in the National Library of Russia in St Petersburg for the first time.