The middle pedal is called "soft pedal", which is rarely used and will be used when playing some special paragraphs. The most obvious example is the piano works of Ravel and Debussy, who fully tap the role of piano as a pedal. This middle pedal is specially designed for pianists, which is rare in upright pianos.

Among them, Germany carod? Carod piano made in Japan, upright piano in Steinway and YAMAHA YUS5 Top upright piano are all equipped with selective sustain pedals. On the upright piano, it will let a thick piece of wool fall from the top of the string striking machine and get between the hammer and the strings, so that the pop-up sound is so small that only people can hear it, but people outside can't hear it. This is to avoid affecting others, and it has no meaning to play.

2. Soft pedal

In upright piano, the left pedal is called "soft pedal". This kind of pedal is used to create a gentle and soft effect in upright piano, which can replace the flexible pedal to some extent.

Because the left pedal can make such changes in strength and timbre on the piano, its function is not only to help the player play weaker, but also to increase the softness of the sound and remove any percussion components in the sound quality. The left pedal is often compared to "the silence of the gyrator".

3, sustain pedal

The pedal on the right is called "sustain pedal" to prolong the vibration time of strings. In fact, it is to use a lever to support a layer of felt that was originally close to the strings, thus prolonging the vibration time of the strings. This pedal is the most commonly used and important polishing machine in piano playing. This pedal has one of the most important skills, which is called "dividing the pedal". That is to say, when shaping each bar, first play the notes, then change the pedal quickly at the moment when the sound sounds, and change the pedal before the finger is lifted.

Therefore, this method of changing the pedal (similar to syncopation) is called "dividing the pedal", which is not changed during the remake, but later than the specific beat. It can be said that this is the origin of sustain pedal technology, and all technologies related to sustain pedal come from "sub-pedal".

Extended data:

The rest of the piano—

1, mallet

The hammer is wrapped with high-quality felt or flannel, because this layer of "skin" is mostly made of wool, so it is also called wool hammer. It is attached to the key. When the keys are pressed, the hammer will knock off the strings and make the piano sound through the vibration of the strings. Therefore, its function is to strike the strings fastened by the tuning nails.

2. Silencer

Damper Damper is attached to the string to stop the vibration of the string. For example, if you press the keys on the piano, the hammer inside the piano will strike the copper strings and make a sound through the vibration of the strings.

Step 3 hit the machine

The action longitudinal beam is the soul of the whole piano and the most important accessory, which is connected with the keys and hammers.

4. Sound board

Sound board The sound board is located on a big wooden board inside the piano. Maple solid board for high-grade piano and density board for modern low-end piano. It is attached to the tuning nail and clings to the strings. When the strings vibrate, the soundboard will efficiently couple sound waves into the air, that is, the sound will be reflected and amplified through the soundboard.

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