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
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