What element is often central to the storytelling aspect of opera?

The central element of opera that significantly contributes to its storytelling aspect is the combination of singing and acting. Opera uniquely blends music and theatrical performance, where vocal expression and dramatic interpretation work together to convey the narrative and emotional depth of the characters. The singers not only communicate the plot through their voices, but their movements, expressions, and interactions on stage also bring the story to life.

While orchestral solos can enhance the atmosphere and provide musical depth, they do not convey the narrative as directly as the vocal performances. Strict tempo adherence is important for maintaining the overall structure and flow of the music but does not directly engage with the storytelling element. Instrumental arrangements play a supportive role in setting the scene or accompanying the singers, yet they lack the direct narrative function that singing and acting provide. Thus, the combination of singing and acting is essential in opera as it drives the storytelling forward and captivates the audience's emotional connection to the characters and plot.