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
Peter K. Moran became popular as a song composer, with "The Carrier Pigeon" (1822; also arranged as a rondo for piano, c.1825) that had many editions. Other well-known pieces by him (for harp or piano) include his variations on "Kinlock of Kinlock" (1825), "Swiss Waltz" (c.1810), "Stantz Waltz" (c.1817), and "Suabian Air" (c.1817). He also arranged many traditional airs, and religious works by Handel and others. Many of Moran's works were still listed as for sale in the "Board of Music Trade Catalogue" in 1870. Piano solo Piano 4-hands "Harp or piano-forte" Songs Peter K. Moran Peter K. Moran [P.K. Moran] (30 June