What violin strings have the lowest tension without effect on sound quality? I have a violin from China, it seems that strings have a too hard tension and deform the fingerboard slightly. I tune it a half step lower and want to choose a string set with a lower tension. And I see that strings I have are not flexible to play a good vibrato. Need to know what brand and string model have the lowest tension on a violin without bad effect on sound quality?
Many violin string sets are available in different tensions. Usually Soft, Medium and Hard. For truly soft strings you can use unwound gut, which are often used for Baroque violin playing.
Ifshin Violins has a good guide on the Types of Strings
Violin String Review has a a good Tension Chart
A good starting place would be a synthetic gut or nylon set in a soft tension.