Which term means to perform in a lively and cheerful manner?

The term "vivace" is used in music to indicate a lively and rapid tempo, often associated with a cheerful and spirited performance. In Italian, "vivace" translates to "lively," which reflects the desired energy and enthusiasm that a piece of music marked with this term should convey.

In contrast, "lento" denotes a slow tempo, suggesting a more relaxed and often somber mood. "Allegretto" indicates a moderately fast tempo, which is lively but not as brisk as "vivace." "Maestoso" implies a majestic or stately manner of playing, often characterized by dignity rather than the lively cheerfulness associated with "vivace." Thus, "vivace" is the most fitting choice for describing a performance that is both lively and cheerful.