as a pianist, I was really confusing with the 4th finger vibrato until i notice this : r lingling40hrs How to Play Vibrato?. 5 Tips for Beginners of String by Violy Medium Mastering the Violin's Fourth Finger PDF Violin String Instruments Fourth Finger Vibrato: Fingertip or Flesh? 4th week in violin learning , Starting finger movements for the future vibrato , I know it's too early but this is in addition to my daily practice , My wrist is not moving .only fingers are moving , Mastering Violin Finger Placement: Techniques and Examples ViolinPanda