Violin Concerto No. 7 (Mozart) to the insertion of new works bearing the numbers K. 271b to K. 271H in the catalogue. He believed that the work was based on a rough sketch of a violin concerto by Mozart from 1777, but states that the original form of the work cannot easily be reconstructed. The uncharacteristic number of passages for the solo violin in the high register, in "pizzicato" (in the second movement), and in double stops in tenths were considered by Einstein to be 19th-century additions. Friedrich Blume, on the other hand, was firmly in favour of the work's authenticity, stating that "not one
K+S Poland, Portugal, Russia, Spain, Sweden and Switzerland in Europe, The Bahamas, Canada and the US in North America, Brazil, Chile and Peru in South America, China, India and Singapore in Asia, and South Africa in Africa. The K+S Group has three divisions, which are strategically, technically and economically closely linked. They are supported by service units and holding functions of the K+S AG K+S K+S AG (formerly" Kali und Salz GmbH") is a German chemical company headquartered in Kassel. The company is Europe’s largest supplier of potash for use in fertilizer and, after the acquisition of Morton Salt, the world's