Grays Essex England

Did You Know Piano Facts

1157

Around the middle of the twelfth century we find the keyed monochord, which was developed further, several strings being added, until eventually we recognize the clavichord. A tangent was fitted to the back of each key, which when raised contacted the single string, and facilitated simultaneous notes. The tangent acted as a bridge determining the speaking length of the string. A mute was fitted to the non-speaking length, so when the key was released the note stopped singing.