Haydn's three Symphonies Nos 90 to 92 could in fact be presented under the name of "Parisian Symphonies, second part", because they were born in 1788-1789 also within the framework of an order from the Olympic Society for which Haydn had already composed his six “Parisian Symphonies” nos 82 to 87 a few years ago. In a rather amusing way, Haydn then sold them again to Prince von Oettingen-Wallerstein, who wanted to "acquire 3 new" Synfonien "from him". Beyond these mercantile complications, Haydn shows himself, in these works, in full possession and in full mastery of his profession as a symphonist. The Symphony in E flat No. 91 was, if one believes the autograph manuscript, completed in 1788, and surprises - even according to Haydn's criteria - by the number of its particularities, such as for example the theme of baroque counterpoint of first movement, or the trill sequences in the slow movement with variations. The study edition reproduces the text of the complete edition of Haydn's works, thus guaranteeing the highest scientific quality. An informative preface and a brief critical commentary make this handy score an ideal accompanist for all Haydn fans, as well as all those who wish to become one.