A research study shows that pianists can subtly alter a piano’s tone through precise finger control — something musicians have debated for over 100 years. Credit: Shutterstock For generations, pianists and music teachers have insisted that a performer's touch can change the character of a piano's sound. Skeptics argued that once a piano hammer strikes a string, the resulting tone is determined almost entirely by the instrument itself. Now, a major scientific study has provided some of the