Bach: Cantata 159 -- preferably the entire work, but, if not possible, then Aria #4: Es ist vollbracht

The following happened less than a month after 9/11:
I entered Penn Station, and heard music from the sound system that I I had never heard before and could not (at that time) identify -- yet knew had to be by Bach. The poignancy of that moment -- in which I heard Es ist Vollbracht for the first time -- coupled with our recent tragedy, which only great music could hope to convey, shook me to the core.

Herb Dalin