At the end of a murder mystery repeat this evening, one I don't watch often but an episode I'd seen before, they played k.d. lang's version of Leonard Cohen's Hallelujah. That's a great somber and beautiful song that I'll have to read the words to, as a poem, to get the full meaning as I listen to it next time. In this performance, Cohen was in the audience.

Don't know if the meaning of this is applicable to the loss of a friend, but it just sounds right on a visceral level.