Which term indicates a style that is light, nimble, and quick?

The term that signifies a style that is light, nimble, and quick is "Leggiaro." In musical terminology, "leggiaro" is used to describe a manner of playing that is lively and brisk, often conveying agility and a sense of lightness. This characteristic is important in various musical contexts, particularly in passages where a rapid, fluid style is required.

In contrast, "legato" refers to a smooth and connected style of playing or singing, where each note is played without any perceptible break. "Largo" indicates a slow tempo, conveying solemnity rather than the lightness associated with swift movement. "Piano," meaning soft or quiet, relates to dynamics rather than a specific style of agility, focusing instead on the volume at which the music is performed. Understanding these terms helps to grasp the nuances of performance practice in music.