4th Finger Vibrato, Is something many people struggle with. Make sure that your hand is relaxed and that your pinkey is strong and independent enough (do 4th finger strengthening exercises if not). Orchestra Classroom: A stroke of inspiration helping students play on the tips of their fingers I hear that when fingers build calluses, left and right hand pizz get easier. I'll never know. I've tried everything. My fingertips have the texture of a soft boiled egg. But I try to stay in rhythm The Strad Nine steps to mastering violin vibrato The Strad