This symphony is the second of four by Michael Haydn to include a slow introduction before the first movement (the others are Symphonies Nos.
21,
27, and
30). All four were written between 1778 and 1785 and attached to symphonies cast in three movements (without
minuets).
References
A. Delarte, "A Quick Overview Of The Instrumental Music Of Michael Haydn" Bob's Poetry Magazine November 2006: 35
PDF
Charles H. Sherman and T. Donley Thomas, Johann Michael Haydn (1737 - 1806), a chronological thematic catalogue of his works. Stuyvesant, New York: Pendragon Press (1993)
C. Sherman, "Johann Michael Haydn" in The Symphony: Salzburg, Part 2 London: Garland Publishing (1982): lxviii