The music stops in the room before it stops moving through the listener.

The last chord ends and something continues. For a few seconds, or sometimes for the rest of the evening, the piece is still working in whoever heard it, and applause arriving instantly cuts that short for everybody. The silence after music is part of the music, and it belongs to the audience rather than the performer.

After the next thing that moves you, wait before speaking about it. Let the walk to the car be quiet. Reaching immediately for an opinion is how experiences get converted into commentary before they have finished happening.