c. 1795—Paris, France

Trombonist André Braun writes his method, Gamme et Méthode pour les Trombonnes. The earliest modern trombone method, it specifically states that the alto trombone is in E-flat, the tenor and bass in B-flat. An influential method book—it informs several later methods, including Fröhlich and Nemetz (see 1811 and 1827, below)—the method book also provides an alto trombone position chart clearly showing an instrument in E-flat (see below image; public domain). Editions are subsequently published in German and Italian (Weiner, Braun; Weiner, Braun Revisited).