Final answer:
In music, dynamics refer to the variations in loudness and are often used to convey emotion or dramatize a scene.
Step-by-step explanation:
The question you've asked pertains to the dynamics in music, which refer to the variation in loudness between notes or phrases in a musical score. In the scenarios provided, before the melody enters, the music typically starts with a softer dynamic, often indicated by terms like 'piano' (soft) or 'pianissimo' (very soft). Then, as the scenes progress, the music may crescendo (grow louder) to suggest rising action or impending drama. In more technical terms, the movie example describes a shift from a quiet, mournful introduction using a minor key to an increase in volume and dissonance, anticipating the entrance of the melody. This suggests tension and foreboding, illustrating the use of dynamics to complement the narrative.
Dynamics are crucial in setting the emotional scene and can significantly influence the viewer's or listener's experience. They can vary widely from one passage to the next, often denoted by Italian terms such as 'forte' (loud), 'mezzo-piano' (moderately soft), or 'fortissimo' (very loud), among others.