A brief opening gap gives way to immediate fast motion. The quartet establishes the movement’s main job at once: a tight, driven grid with little introductory space and no separate thematic waiting room.

The same motor frame continues, but the section takes on more weight. Repetition matters here: the music proves that the rapid pattern is not a launch gesture but the operating condition of the movement.

The pressure lifts slightly without releasing the pulse. This span functions as a long continuation, keeping the grid intact while letting the racing material travel rather than turn into a new episode.

Weight returns beneath the motion, tightening the last drive. Around 2:14 the phrase drops back and lifts again, a local check in the forward rush rather than a full reset.

The pattern starts to fracture, attention loosens, and the motor hold recedes. By about 2:33 the sound has fallen into silence, which becomes the ending rather than preparation for another return. The movement’s form is a single sustained motor argument, intensified by returns of weight and ended by withdrawal instead of resolution.