What does "sotto voce" mean in musical directions?

"Sotto voce" is an Italian term commonly used in music to indicate that a passage should be played or sung softly or in a subdued manner. It literally translates to "under voice," suggesting that the performer should communicate the music quietly, often to create a sense of intimacy or to convey a particular emotional nuance. This term is typically employed in situations where a contrast in dynamics is desired, leading to a more expressive performance.

The other terms presented represent different musical directions: for example, the notion of "loud, powerful" directly opposes the spirit of "sotto voce," as it calls for stronger, more forceful sound. Similarly, "quickly" would often be indicated by a term like "allegro," while "calmly" does not align with the specific dynamic direction inherent in "sotto voce." Understanding these distinctions enhances grasp of dynamic markings and their expressive implications within a piece of music.