Spafford shows are a wholly symbiotic experience. The band feels it when the audience is collectively attentive and responsive, and the resulting music is the reflective of that.
This show is the epitome of that relationship. Just listen to the silence from the crowd during Alternate Ending. Completely locked in. Brian acknowledged it at one point between songs, too.
The band cooks with gas from start to finish. Do yourself a favor and listen to it all. Then go to a show. Bring a friend. Lock in and be amazed.