The composer of the this concerto is not clear. Until today, this concerto is published and perfomed under the name of Joseph Haydn. This is definitely false. Two aspects show this assumption:

1. The concerto was later (different hand writing) contributed to Michael Haydn at the copy of the collection Zwirziena.
2. The beginning of the concerto does not match the incipit of the lost concerto by Joseph Haydn (Elssler Catalogue)

Several reasons for the composer Antonio Rosetti as the author:

• Movements serial: Allegro - Romance - Rondo 6/8

• Structure:  e.g. long introduction of the first movement, coda of the third movement

• Instrumentation: 2 Violas - stylistic evidence for the Courtchapel Wallerstein, even F.A. Hoffmeister wrote his concerto for two horns in this instrumentation because he dedicated it Nagel and Zwierziena, the hornists of the Court Wallerstein.

The Rosetti scientist Prof. Dr. Sterling E. Murray speaks also of Rosetti as the author in his very interesting paper about the attribution of this concerto.