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
Biamonti Catalogue there are some that Biamonti could not have known about, and so there is still no single catalog with all of Beethoven's compositions. Biamonti's numbers, in addition, are rarely used. Instead, WoO numbers are generally favoured. Biamonti Catalogue The Biamonti Catalogue is a catalogue of Ludwig van Beethoven's compositions published in 1968 by the ILTE of Turin. The original name of the work is "Catalogo cronologico e tematico di tutte le opere di Beethoven, comprese quelle inedite e gli abbozzi non utilizzati". Giovanni Biamonti tried to combine all pieces of the author, including all works approached in other catalogues (the