Petit Theme on SoundCloud
Well, at least seven. Here are a few song projects featuring violin that can be enjoyed for free. The Creative Commons license applies for tracks with an “X” in the “CC” column. 
[table width=”400px”]
Artist,Composition,Link,Genre,CC
Viviane Hagner (w/ A. Arad),Brahms Sonatensatz,FMA,Classical,X
Viviane Hagner (w/ A. Arad),Saint-Saens Dmin Sonata,FMA,Classical,X
Corey Cerovsek (w/ P. Jumppanen),Beethoven Kreutzer,FMA,Classical,X
Mari Kimura,Vitessimo for Augmented Vln,FMA,Avant-garde,X
Nicola Benedetti,Ravel Sonata,FMA,Classical,X
Dixon's Violin,original,Spotify,Ambient,-
Brain Crain,"Rain"--original,Spotify,Ambient,- Edward Maya & Devas,Love in Stereo,Soundcloud,Electronica,- Matt Holborn Quartet,various,SoundCloud,Jazz,- Sally Jo,Oblivion,SoundCloud,Metal,- Raymond TheLionhearted,Only Time (Enya),SoundCloud,Ambient Andrew Smith,Petit Theme (G. Olivieri),SoundCloud,Cinema,-
[/table]
