The secret to a great solo violin track isn't just the plugin; it's the . To make a free VST sound real:

This is the champion. The late, great Bigcat1960 (a legendary figure in free sampling) sampled a real, live solo violin. It is raw, slightly imperfect, and has incredible warmth.

Spitfire's free LABS series includes "Strings" – but note: this is not a traditional solo violin. It's a collection of from a solo violin.