Which term signifies playing with more motion or at a quicker pace?

The term that signifies playing with more motion or at a quicker pace is "Piu mosso." This term is derived from Italian, where "piu" means "more" and "mosso" translates to "motion" or "movement." Therefore, when a piece of music is marked "Piu mosso," it instructs the performer to increase the tempo and play with greater energy and liveliness.

In the context of musical performance, dynamics and tempo markings are essential for conveying the composer’s intentions. "Piu mosso" is specifically used to indicate a desire for a quicker feel, enhancing the overall excitement or urgency of a musical passage.

The other terms presented have different meanings. "Allargando" refers to a gradual slowing down and often implies a broadening of the sound. "Meno mosso," by contrast, means "less motion," instructing the performer to decrease the pace. "Pesante" suggests a heavy, ponderous style of playing that typically does not align with an increase in speed or liveliness. Understanding these terms helps musicians interpret and perform music with the appropriate character and emotional depth.