What does the term "tranquillo" mean in musical terms?

The term "tranquillo" in musical terms specifically indicates a style or character that is calm, peaceful, and serene. It is derived from the Italian word for "tranquil," emphasizing a gentle and soothing quality in the music. When this term is used in a score, it typically suggests that the musician should perform the passage in a relaxed and soft manner, thereby creating an atmosphere of calmness. This contrasts with more energetic or fast terms, which would convey a different emotional state in the music. Understanding the meaning of "tranquillo" can help performers interpret the music in a way that aligns with the intended emotional expression.