Mr. DeJong tells the students talking that they must be quiet and practice. The class is still practicing individually. Mr. DeJong becomes occupied and does not notice that some students continue to talk after his instructions to practice. Mr. DeJong turns on music. More students begin to talk, and some dance around the room.
Some students begin to pack-up their instruments.
I suppose he is rewarding the class for working hard. Again, I feel that this time is too unstructured. The bell rings. Those who have not packed-up begin to do so. The students leave the classroom as the music plays on.