Musicology Annotation << Back Directions of Kapellmeister Joseph Haydn (the Ietter About Cantata «Applausus», 1768) Anna Demidova This article is devoted to the unique document — Joseph Haydn’s letter about interpretation his celebratory cantata «Applausus». This letter contains important statements of composer and kapellmeister about orchestral practice of the middle of the 18th century. Such questions about history of early classical orchestra as its structure and number of musician, choice of instruments in continuo group, features of kapellmeister’s rehearsal work and even such particular problem as making parts of orchestral compositions are mentioned in the article. Haydn’s instructions to the interpretation are grouped by content (remarks about introduction symphony, structure of the orchestra, explanations addressed to the musicians, advices copyist) and detailed commented in the context of general orchestral situation of that time. Keywords: J.Haydn, early classical orchestra, instrumentation, 18th century, «Applausus», continuo. Contacts: E-mail: anna.k.demidova@gmail.com Pp. 45-50.