Thumb: supports the bow, provides fulcrum

Middle Finger: closes the ring with the thumb to secure fulcrum

Index Finger: presses the bow down and controls sounding point

Ring Finger: controls Sounding Point

Little Finger: lifts bow pressure

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Check your bow grip after each bar.

If your bow grip has changed, figure out on which note it changed.

Systematically increase the number of bars between checks.

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Utilizing Kreutzer No. 13 (or a similar exercise), start on the D string and explore the range of possible string crossings using only your fingers.

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