What does the term "louré" refer to in music?

The term "louré" refers specifically to a style of bowing in string instruments where there is a slight detachment of the notes, characterized by a gentle separation while maintaining the overall direction of the bow. This technique creates a slightly articulated sound that allows for a nuanced expression, differentiating it from other bowing methods that might involve more pronounced separations or markings.

In contrast, the other choices describe different musical techniques. The description of smooth legato with a gradual crescendo does not align with the definition of "louré," as it implies a continuous, flowing sound rather than slight detachment. Sharp staccato notes played in quick succession imply a more abrupt and distinct separation of notes, which is not characteristic of the "louré" style. Lastly, a rapid sequence of notes in a scale refers to a different concept entirely, focusing on speed and succession rather than the articulation of individual notes. Thus, the correct understanding of "louré" centers on that nuanced touch and slight detachment in the performance of the notes.