The linseed oil-based varnishes of the 16th and 17th centuries provide the best acoustic performance. Brandy varnishes from the late 18th and 19th centuries, as well as synthetic varnishes from the 20th and 21st centuries, are significantly inferior to this traditional knowledge.
The linseed oil-based varnishes from the 16th and 17th centuries have the greatest effect on the acoustic properties of the violin. The brandy varnishes of the late 18th and 19th centuries and the synthetic varnishes of the 20th and 21st centuries are acoustically far inferior to this traditional knowledge.
