What does the term "piu mosso" indicate regarding tempo?

The term "piu mosso" is Italian and translates directly to "more motion." It is used in music notation to indicate an increase in tempo, suggesting that the performer should play more quickly than the previous passage. This term originates from the idea of enhancing the energy and expressiveness of the music by boosting the speed.

In practice, when you see "piu mosso," it is a directive for the musician to increase the pace, making the music feel livelier. Thus, this option accurately reflects the intended change in tempo and enhances the overall interpretive quality of the performance. The other options either convey a decrease in speed or remain neutral and do not communicate the intended increase in motion that "piu mosso" implies.