Which term is used to signify "with spirit" and relates to lively performance?

The term that signifies "with spirit" and relates to lively performance is "con bravura." This term is commonly used in musical performance to indicate a vigorous, spirited, and highly skilled execution of the piece. It encourages musicians to infuse their playing with energy and enthusiasm, often showcasing their technical abilities and interpretative skills in an exhilarating manner.

"Con fuoco," while also suggesting intensity and fervor, emphasizes fire or passion but does not specifically connote liveliness in the same way as "con bravura." "Con grazia" translates to "with grace," focusing more on elegance and fluidity rather than lively energy. "Con tenerezza," meaning "with tenderness," emphasizes a softer, more delicate approach, which is not aligned with the concept of a spirited performance. Thus, "con bravura" is the most fitting term for conveying the idea of performing with vibrancy and zest.