The construction of the guqin Chinese zither is a complex process like any other musical instrument. However, there is much symbolism in the choice of materials, the shape or form of the instrument that are important things to consider when creating a qin. Design Overview In simplistic terms, the guqin is an acoustic instrument consisting of a sound chamber formed by two long planks of wood glued together. One or both planks are carved inside to form a hollow chamber. On the underside of the instrument are sound holes. Strings are supported by a nut and bridge. Scale length is typically 43" to 44.5". The center of the top is used as a fingerboard and is arched to some degree. Inlays mark note positions on the fingerboard. The instrument has feet on the underside to allow it to be played on a tabletop without blocking the sound holes. The underside also houses tuning pegs or tuners. The strings are traditionally made of silk but modern steel-on-silk strings are also used. Details As an instrument with millennia of history the guquin has an overwhelming amount of details, traditions, and variations. Some small amount of that information is collected here. Materials The sound chamber of the qin is constructed with two boards of wood, typically of differing wood types. The slightly rounded top board (soundboard) is usually made of tong wood 『桐』, the Chinese parasol tree, or Chinese paulownia. There are many different types of tong wood, the names of which are listed in the Yuguzhai Qinpu: wutong 『梧桐』 (Firmiana simplex), baitong 『白桐』, qingtong 『青桐』 (Japanese paulownia), paotong 『泡桐』 (Paulownia tomentosa), yitong 『椅桐』 and nantong 『南桐』; the best is wutong, but paotong is now widely used. The bottom board is made of zi mu 『梓木』 catalpa (Catalpa ovata) or, more recently, nan mu 『楠木』 camphor wood (Machilus nanmu) . The wood must be well seasoned, that is, the sap and moisture must be removed (of the top board wood). If sap remains then it will deaden the sound and, as the moisture evaporates, the wood will warp and crack. Some makers use old or ancient wood to construct qins because most of the sap and moisture has been removed naturally by time (old shan mu 『杉木』, "Chinese fir", Chinese Cunninghamia or Japanese Cryptomeria, is often used for creating modern qins). Some go to lengths to obtain extremely ancient wood, such as that