In the late 17th century, Italian musician and inventor Bartolomeo Cristofori developed a new musical instrument--his cembalo che fa il piano e forte, which allowed keyboard players flexible dynamic gradation. This innovation, which came to be known as the hammer-harpsichord or fortepiano grand, was slow to catch on in musical circles. However, as renowned piano historian Eva Badura-Skoda demonstrates, the instrument inspired new keyboard...