Which bowing technique produces a smoother transition between notes?

The technique that produces a smoother transition between notes is slurred bowing. This involves playing two or more notes in one smooth stroke of the bow without re-bowing between the notes. By slurring, the player can connect the notes seamlessly, resulting in a legato sound that enhances the musical phrasing and maintains a flowing line. This technique is particularly effective in creating lyrical passages, as it allows for a more expressive and fluid style.

In contrast, the other techniques have distinct characteristics. Froggy style, for example, is less standardized in classical terminology and often refers to a playful or exaggerated technique that may not emphasize smoothness. The up bow technique refers to the direction of the bow movement and does not inherently produce a smoother sound on its own, especially when notes need to be articulated distinctly. The detache stroke involves a slight articulation on each note, creating a clean separation rather than the smooth connection found in slurred bowing.