What is the term for the release of the soft pedal on a piano?

The term for the release of the soft pedal on a piano is "tre corde," which translates from Italian as "three strings." This terminology originates from the fact that a soft pedal on many pianos works by shifting the hammers so they strike only two of the three strings for each note, producing a quieter sound. When the soft pedal is released, the player is instructed to return to a full, unaltered sound, which is indicated by the term "tre corde."

In contrast, the other terms listed have different meanings in music. "Forte" refers to playing loudly, "piano" means softly, and "allegro" indicates a fast tempo. Understanding these terms helps musicians interpret and convey the intended dynamics and expressions in music.