Here you can find practice material (Exercises and Repertoire Excerpts) for working on our use of the fourth finger in the Intermediate Region.
Use Of Fourth Finger On The Midstring Octave: REPERTOIRE EXCERPTS
Use Of Fourth Finger Above the Midstring Octave: REPERTOIRE EXCERPTS
Use Of Fourth Finger to Avoid Tone Extensions Between 2nd and 3rd Fingers: EXERCISES
Use Of Fourth Finger In Chromatic Passages: EXERCISES
Fast Fluid Articulation Exercises Always With Fourth Finger