tre 3, corda string. The abbreviation is t.c. Tre corda is an Italian music performance term, literally translated as "three strings", which extends to "release the weak pedal", which means to restore the normal sound of the piano's strings (three strings). ?

This term originally refers to the grand piano: because the grand piano is designed to have 3 strings for each note, when the mute pedal (una corda? one string) is depressed, the action slightly By moving sideways, the hammer only hits one or two strings, and the volume becomes weaker. However, the term is now also applied to upright pianos, although the mute pedal works differently on upright pianos.

Extended information:

Pedal

(Pedal)

refers to the foot pedal under the grand piano. It is the most important accessory of the piano besides the keyboard. It was invented by Italian musical instrument maker Bartolommeo Cristofori in 1711 when he was renovating the piano. It is mainly divided into three parts:

1) Damper Pedal:

Invented by the British John Broadwood in 1783, it is usually the rightmost pedal under the piano. On the inner pedal, when the damper pedal is pressed down, the damper (Damper) that is usually pressed on the strings immediately rises, causing all the strings to continue to vibrate.

After releasing the pedal, all the dampers are pressed against the strings to stop the sound. Since pressing the damper pedal will expand the sound of the piano to a certain extent, it is also called the Loud Pedal.

(2) Soft Pedal:

It is a pedal located on the leftmost side of the bottom of the piano. It has two different functions. In a platform piano, when the soft pedal is stepped on, the hammer will immediately move sideways so that it only strikes the second of the three strings, or one of the two strings (if each If there are three strings for one note, only two strings will be struck.

If there is only one string for each note, the movement will cause the softer part of the hammer to strike the strings). Reduces the volume and makes the sound very pure and soft. In an upright piano, when the soft pedal is pressed, all hammers move closer to the strings, thereby reducing the momentum, reducing the length and intensity of the blow, and making the volume smaller.

(3) SostenutoPedal:

In addition to the damper pedal and the soft pedal, a modern piano is a pedal with special properties located in the middle. It has the function of sustaining the vibration of sound or string. However, since there are few opportunities to use the sustain pedal, the structure and function of the current sustain pedal have changed.

When the sustain pedal of most modern pianos is depressed, a piece of movable flannel is sandwiched between the hammers and strings, causing the volume to become extremely thin and fuzzy. Usually only suitable for playing the piano at night or early in the morning, so as not to disturb the peace of neighbors.

Baidu Encyclopedia-Grand Piano