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
K. S. Narayanaswamy K. S. Narayanaswamy K. S. Narayanaswamy, (full name Koduvayur Sivarama Iyer Narayanaswamy; 27 September 1914 – 1999) was a Carnatic veena exponent of the Thanjavur style, in which nuances and subtleties are given more importance over rhythm based acrobatics. He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1979. He was born on 27 September 1914 to Narayaniammal and Koduvayur Sivarama Iyer at Koduvayur in Palghat district in Kerala. He underwent initial training in Carnatic music under K.S. Krishna Iyer, his brother, between his seventh and fourteenth years. Later, he joined the Music College at Annamalai University in Chidambaram