From Ari Goldwag's website:
07/26/2009 Years ago I composed a song whose words come out of the kinnos of … moreTisha B'av. They are עד אנה בכיה בציון ומספד בירושלים תרחם ציון ותבנה חומות ירושלים - How long will there be crying in Tzion and eulogy in Jerusalem? Have mercy on Tzion and rebuild the walls of Jerusalem. When I have had difficulty getting emotional on Tisha B'av, I will inevitably turn to these words and this song, and the tears come. I hope it will inspire you too. The song is A capella - there are no instruments, just voices.