The term forte-piano is Italian, and literally translates to "loud-soft." It is one of many dynamic markings used in Western music notation, each of which indicates a specific level of loudness or softness.
Forte-piano is notated by writing the letters "f" and "p" together, with the "f" coming first. For example, the following passage would be played loud, then suddenly soft:
```
f>p Allegro
```
Forte-piano can be used in any type of music, but it is particularly common in classical music. It is often used in sonatas, symphonies, and concertos, where it can help to create dramatic tension and release.
Forte-piano is a versatile dynamic marking that can be used to add depth and expression to any piece of music. It is an essential tool for any musician who wants to create powerful and moving performances.