Which of the following terms means 'with ease' in music?

The term 'comodo' in music specifically translates to 'with ease' or 'at a comfortable pace.' This term is often used to indicate that the performer should play or sing in a relaxed manner, without the pressure of strict tempo or speed. It conveys a laid-back, smooth feel, encouraging musicians to interpret the passage in a fluid and unhurried way.

The other options represent different musical expressions: 'con grazia' means 'with grace,' which suggests a delicate, elegant performance; 'con fuoco' translates to 'with fire,' indicating a passionate and intense style; while 'crescendo' refers to a gradual increase in volume. Each of these terms communicates specific nuances, but none reflect the concept of performing 'with ease' as clearly as 'comodo' does.