Introduction

The strings inside the piano vibrate as a whole from one end of the string to the other at 400 and forty vibrations per second. We also hear secondary vibrations, secondary reverberations, which aregene ted by the string dividing upon itself. Vibrates as a whole in two halves, in three furds, as for horfs and anoni gos, brating out overtones. In fact, it's the varying volumes of the different overtones which is what makes different instruments, as well as ent voices, sound different even though they might be playing or singing the same not.