A 'violin novel' might refer to a novel that has some connection to the violin. It could be a story where the violin plays a significant role, perhaps as a symbol, or it could be about a violinist and their life experiences. For example, it might tell the story of a young prodigy who overcomes many difficulties through their relationship with the violin.
A violin visual novel could be a visual novel that has something to do with violins. It might have a story where the violin plays an important role, like the main character could be a violinist. Or perhaps the music of the violin is a key element in the game's soundtrack and atmosphere.
It's not a true story. Stories like The Violin Conspiracy are often the product of an author's imagination, designed to take readers on a fictional journey with interesting twists and turns.
Most of the time, the red violin is fictional. In many cases, it's used as a symbol or element in a story to add intrigue and imagination. But it could potentially be based on some real inspiration or loosely related to real objects, depending on the specific context.
I recommend Falling in Love with a Noble Son: Campus Concerto to you. The female protagonist was a violin genius who loved this art. However, for some reason, she had to terminate her plan to play the violin. In the novel, it was also mentioned that the female lead had a white violin. I hope you like this fairy's recommendation. Muah ~😗
I'm not aware of many novels specifically named as 'violin novels' in a very common sense. However, there might be some novels where the violin is a prominent element. For instance, in some historical novels set in the era of famous violin virtuosos, the violin and the music might be integral to the story.