Which term suggests a joyful manner in music?

The term that suggests a joyful manner in music is "Allegro." This Italian word translates to "cheerful" or "lively" and indicates a brisk and upbeat tempo. Allegro often conveys a sense of happiness and excitement, making it a widely used term for joyful passages in music.

On the other hand, "Triste" translates to "sad" or "sorrowful," which is opposite to joyfulness. "Lamentoso" also conveys a sense of mourning or lamenting, highlighting a serious and melancholic mood. While "Felice," meaning "happy," does convey a positive sentiment, "Allegro" is more specifically associated with the tempo and spirited character that reflects joy in performance. Therefore, if the aim is to express joy through movement and tempo, "Allegro" is the most appropriate choice.