Tall people need a violin positioned with the fingerboard more to the left or their bows will be crooked (in the opposite direction to the bows of small players), and they will have lack of room for the shoulder joint to move when bowing at the frog.
Cramped position of shoulder joint at frog
By squaring off the arm and leaving the violin in its old position, we can see that the violin is not properly aligned to this player’s long arms:
1. The arm is squared off, but violin is in old position towards the centre.
2. This causes the bow to be crooked.
Adjusting the position of the violin by angling the fingerboard more to the left gives room for longer arms to bow:
1. Completely “squared off
2. The player with longer arms can now bow to the frog with ease.