Ludwig Ritter von Köchel since undergone revisions. Mozart's works are often referred to by their K-numbers ("cf." opus number); for example, the "Jupiter" symphony, "Symphony No. 41" K. 551. Moreover, Köchel arranged Mozart's works into twenty-four categories, which were used by Breitkopf & Härtel when they published the first complete edition of Mozart's works from 1877 to 1910, a venture partly funded by Köchel. He also catalogued the works of Johann Fux. Ludwig Ritter von Köchel Ludwig Alois Friedrich Ritter von Köchel (; 14 January 1800 – 3 June 1877) was an Austrian musicologist, writer, composer, botanist and publisher. He is best known for
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