These particular person keys are then soldered along with silver solder to make the connected group. Next the keys are polished. Keys for inexpensive models may be placed in a tumbling desktop, where friction and agitation of pellets in a revolving drum polish the pieces. More expensive keys may be buffed in my opinion by being held in opposition t the rotating wheel of a sharpening computer. Some keys may be silver plated, after which polished. Clarinet manufacturing itself is a fairly conservative industry, depending on highly skilled craftspeople who do much work by hand. Most of the strategies in clarinet design are now 100 years old. One area that is still in flux, however, is the manufacture of clarinet reeds. While the best reeds are said to come back from a species of cane grown in France, some gamers and makers are experimenting with wild cane that grows in California. Synthetic reeds have also been built recently, and more analysis is being done to enhance them. As assets of natural cane diminish, and ordinary best is not high, artificial reeds may be what most clarinet players use sooner or later.