Which term indicates a change to a performance style that expresses emotion such as sorrow?

The term "con dolore" translates to "with sorrow" or "with pain" in music, indicating a style of performance that emphasizes emotional depth and expresses feelings of sadness or sorrow. This directive suggests that the performer should interpret the music in a way that conveys a more poignant and sensitive atmosphere, often prompting slower tempos and expressive dynamics to enhance the emotional impact.

In contrast, "con moto" means "with motion," suggesting a lively or brisk tempo that does not necessarily reflect emotion but rather a sense of energy. "Comodo" translates to "comfortable" or "at ease," which does not imply emotional expression but rather suggests a tempo that is relaxed. Lastly, "con brio" means "with spirit" or "vivacity," encouraging a performance that is bright and energetic, again not focusing on the emotional aspect of sorrow.

Thus, "con dolore" is the term that specifically and directly relates to a change in performance style aimed at conveying sorrowful emotions.