[Joachim, Joseph. (1831-1907)] Hauptmann, Moritz. (1792 - 1868) Autograph Musical Manuscript of the 'Joachim Canon': "O! - O! - Och - im Canon."Undated autograph manuscript, presumably October 1845, a 4 voice canon in F Major, notated in brown ink on twelve staves, with a number of alterations in the texts visible. 1 page, 25. 5 x 33 cm, 12 stave paper. Verso features an additional four measures on the bass notes G A D E, a reference to the Danish composer Niels W. Gade (1817 1890), a friend of Mendelssohn and Schumann from Leipzig in the 1840s, and the dedicatee of a short piano piece by