1.Keystroke:
* When a piano key is pressed, it causes the key lever , known as the "Front lever," to move downwards.
2.Front Lever:
* The front lever is attached to a "Sticker." which is glued to the "Jack."
* As the front lever moves,.it depressess the Jack.
3. Jack Action:
* Depressing the Jack causes a second lever connected to the Jack, called the "Back check," to lift.
4.Hammer Activation:
* The lifting motion of the back check allows a "Hammer Rest," which is positioned behind the Jack. to rise.
* The movement of the hammer rest cause the hammer to escape and move freely towards the strings.
5. Hammer Impact:
* The Hammer, which is covered with a material such as felt or leather, strike the strings when it moves towards them.
* The strike create vibration in the strings.
6. String Vibration:
* The vibrating strings produce a sound that can be heard as a musical note.
* Each note on the piano corresponds to a specific string or combination of strings that are tuned to different pitches.
7.Sustained Vibration:
* After the hammer strikes, a part of the piano mechanism called the "Damper" rises, lifting away from the strings.
* This allows the strings to vibrate freely and continue producing sound.
8.Dampening Sound:
* When the key is released, another part of the piano mechanism, the "Sustain pedal(Damper pedal), comes down and presses the dampers against the strings, stopping their vibrations.
* This action quickly reduces the sound of the note, producing the characteristic note duration.
9.Resonance:
* Soundboard located underneath the piano, resonate in sympathy with the vibrating strings.
* The soundboard amplifies the sound of the strings and contributes to the overall tone and richness of the piano's sound.
In summary, the piano produces sound through a combination of mechanisms that involve keys, levers, hammers, strings, and the soundboard. When a key is pressed, it triggers the hammer to strike the strings, causing them to vibrate and produce sound that is amplified and shaped by the piano's design and construction.