Joseph Haydns Organ Concerto in C major Hob XVIII:1 was composed in 1756. The autograph stems from the archives of Breitkopf & Härtel and has been housed at the Universitäts- und Landesbibliothek Darmstadt since 1953. The first edition (score and orchestral parts) was published in 1953 by Breitkopf & Härtel in Wiesbaden. The present Urtext edition is the first to take into account the brass parts prescribed in the autograph, but not written out contained in a contemporary copy.