'''Symphony No. 51 in B-flat major''', Hoboken I/51, is a symphony by Joseph Haydn, written in either 1773 or 1774,James Webster & Georg Feder, ''The New Grove Haydn''. New York: Macmillan (2002): 64. Haydn's symphonies of the years around 1770 ... are widely described as exemplifying his ''Sturm und Drang'' style; those of 1773-4 (nos.50, 51, 54-7, 60, 64), while less extreme, have many points of contact with it." although the exact dating remains ambiguous.Daniel Heartz, ''Haydn, Mozart, and the Viennese School, 1740-1780''. W.W. Norton & Company (ISBN 0393965333), pp. 363-364 (1995).
Scored for 2 oboes, 2 horns (B-flat alto, E-flat), bassoon and strings, The work is in four movements:
#Menuetto - Trio I - Trio II, 3/4
Sometimes described as "a concertante piece featuring the two horns, which are given parts of staggering difficulty."Antony Hodgson, ''The Music of Joseph Haydn: The Symphonies''. London: The Tantivy Press (1976): 78 The second, slow, movement contains high notes for the first horn (including an