Where can I find high-quality guqin？

The external features of a guqin include the body, surface, shaft, and string axis. The body of a guqin is the main part, which can be divided into three types: long body, short body, and small body, with the long body being the mainstream. The visible part on the piano surface has seven string tracks and thirteen badges. The shaft refers to the axle used for the strings, and buyers need to check if it is in good condition and if there is excessive wear. The chord axis refers to the mechanical part used for tuning and also needs to be checked for completeness.
Guqin can be divided into cedar and tung wood qin (Wutong, not Paulownia from Henan). These two materials are not necessarily good or bad, but due to the difficulty in finding old Chinese parasol wood, most of the so-called tung wood qin nowadays is replaced by paulownia. Paulownia has an extremely fast growth cycle, so although the wood is loose and treated, its unstable wood properties greatly reduce its collection value. The price of Laoshan Qin is relatively expensive, but its wood quality is stable, and its timbre can also play better, which has high practical and collectible value. The famous Tang Dynasty Lei Qin was made of cedar wood. According to the Record of Langyi (14), Lei Wei plays the qin, without having to use all the trees. When encountering a strong wind and snow, he goes to Emei alone to drink, wearing a straw hat, and enters the deep pine. He who listens to its continuous and melodious sound cuts it down, using it as a qin, which is better than the trees. The pine here refers to Emei pine, which is also known as the Emei fir. Most of the top quality of modern pianists are made of old cedar wood. Among the ancient qin styles that exist today, there are Fuxi, Lingji, Shennong, Lianzhu, Zhongni, Shikuang, Luoxia, Jiaoye, and other qin styles, among which the most common are Zhongni, Lianzhu, Fuxi, and so on. The names of Qin style are often derived from myths, historical allusions, or natural phenomena, and each name is a symbol.
As a daily companion, guqin is crucial in terms of timbre, as it is directly related to the cultivation of the player is interest and the fun of playing. Guqin is a plucked instrument with different octaves on each string. The accuracy of the pitch is mainly determined by the accuracy of the emblem position, and the quality of the timbre is the most basic benchmark for identifying the quality of a Guqin. The sound of a good piano is uniform, round, and penetrating. When it comes to the volume at the beginning, it may not necessarily be very loud, but it sounds very powerful and infectious, such as a stone falling into a deep pool, and a small water splash with strength and depth. When playing according to the notes, pay attention to whether the high, medium, and low tones are evenly proportioned. A qualified guqin should have a consistent timbre and volume for its scattered, pressed, and overtones.