As a delicate instrument, the appearance and sound quality of the violin need to be properly maintained.
1. **Protect the wood**: The wooden surface of the violin may need protection to prevent scratches and wear. Spraying is a protective measure that can provide an extra layer of protection for the violin.
2. **Aesthetics**: The spraying of the violin is also related to the beauty of the instrument. Some players hope to enhance the appearance of the instrument through spraying to make it more unique or in line with their personal taste.
3. **Sound characteristics**: In theory, different coatings may have a certain impact on the resonance and sound transmission of the violin.