What does an accent signify in a musical piece?

An accent in music indicates a stressed note, meaning it is meant to be played with greater emphasis compared to surrounding notes. This emphasis can create a more dynamic and expressive performance, guiding the listener’s attention to the accented note. Accents can be achieved through variations in dynamics, articulation, or slight changes in timing, making the note stand out.

In contrast, the other options related to different musical concepts. A smooth transition would typically refer to legato playing or slurring, which emphasizes connectivity rather than stress. A pause or rest indicates silence rather than emphasis, and a change in key pertains to modulation within the piece rather than the stress of a singular note. Thus, understanding accents is crucial for conveying the intended phrasing and expression in music.