PROVO, Utah — A young Provo violinist, born with only one arm, can now continue to perfect her talents thanks to a device designed by a Brigham Young University engineering student. Ten-year-old Adia ...

As a violinist, I can say that the right hand and arm executes more complicated sets of movements than the left. These are almost too many to enumerate: combining up and down bow motions and complex ...

The finesse required when playing musical instruments is probably the best example of handedness in humans. But there are other instances where you have to learn to do things the other way around.