Köchel catalogue son's earlier works; Mozart's catalogue of his own compositions (begun in February 1784 with K. 449) allows relatively precise dating of many of his later works. The catalogue included the opening bars of each piece, known as an incipit. Köchel divided the corpus into a main chronology of 626 works, and five appendices ("" in German, abbreviated to "Anh.") The appendices (Anh. I-V) included: Since Köchel published his original catalogue in 1863 (now referred to as K), the dating of Mozart's compositions has been subject to constant revision. Many more pieces have since been found, re-dated, re-attributed and re-numbered, requiring
Music history of the United States in the late 19th century - who often performed duets with Gottschalk while on tour - was a composer in his own right. Theodore Thomas (conductor) was considered to be a leading conductor during the 1880s and 1890s. Thomas too championed works by leading European composers. He also conducted works by leading U.S. composers. Today, the vast majority of 19th century U.S. composers are all but lost to history. This was also the era when women composers and African American composers started to see their music published in increased numbers. In the later decades of the 19th century, the music industry became dominated by a