Violinist Lihay Bendayan: Fourth finger vibrato Focus The Strad Here are a few things to know and work on if pinky vibrato is hard for you: 1The pinky structurally is like a counterbalance to the thumb. They are connected at the Strengthening fingers for violin vibrato technique Developing Violin Vibrato The Instrumentalist 4 Things to Check If Your Vibrato Isn't Working the Way It Should Strings Magazine How to have a stronger fourth finger on the violin Broadbent School of Violin Artistry