0:01-2:40 Chorale under restraint

• The movement begins with a slow, hymnlike contract: enter, withdraw, return.
• Early gaps at 0:42 and 0:43 make silence part of the form rather than empty space beside it.

2:40-5:34 Renewed strength and bowed-head reset

• The music gathers more motion without abandoning the grave pace.
• The stretch from 3:13 toward 4:49 gives the line circulation, then the 5:25-5:34 silence cluster folds that motion back into devotional stillness.

5:34-10:46 Return tested by weight

• After the midpoint reset, the same formal world resumes with a changed inner temperature.
• The heavier span around 8:02-9:38 makes return feel earned, and the 10:38-10:46 gap becomes the large hinge of the movement.

10:46-14:28 Recovery as continuation

• The re-entry after the large quiet does not announce a new scene.
• Structure works by carrying the memory of interruption forward while the quartet keeps walking through familiar material.

14:28-16:04 Withdrawal

• The late insistence loosens into smaller gestures and longer spaces.
• The ending releases the form by withdrawal: the song of thanks stops by letting its returns become quiet.