Qin and se refer to two musical instruments in ancient China, namely the guqin and the guzheng.

1. Guqin

Guqin is one of the earliest seven-string plucked instruments in Chinese history and is known as the "King of Qins". The body of the guqin is about 1.4 meters long and is made of sandalwood or bamboo. The strings are braided with silk thread. It has a special pentatonic version that indicates pitch and note name. Guqin is played mainly with finger-pressed and plucked strings, and is famous for its deep, quiet tone and melodious melody.

2. Guzheng

The guzheng is one of the plucked instruments in ancient China, also known as the thirteen-stringed instrument. The guzheng body is about 1.6 meters long, and each string is braided with silk thread. The guzheng has a high range and can play a rich and diverse range of music. When playing the guzheng, the strings are often plucked with fingernails or finger cots, and rich sound effects and tones are produced by tapping and sliding the fingers.

The guqin is an ancient and unique musical instrument. When using it, you need to pay attention to the following aspects:

1. Protect the body: The body of the guqin is mainly made of wood, so It needs to be protected from moisture, heat and direct sunlight. The body should be kept dry and stored in a stable temperature and humidity environment to prevent the wood from warping or cracking.

2. Maintenance of the strings: The strings of the guqin need to be checked and replaced regularly to maintain stable sound quality and good performance. Used strings should be placed in a reasonable position on the piano to avoid hanging from the bridge and pulling.

3. Gentle use: When playing the guqin, you need to keep your fingers and nails clean and avoid excessive or uneven force. Do not play the strings with excessive force or use sharp objects to avoid damaging the strings or the body.