Following is the Add This text from the site that's hosting this lovely piece of music. I bought a download and if you feel like you can do anything to help the folks who were victimized by a lunatic who invaded a movie theater in Colorado, you should buy one, too. The composition itself is haunting and beautiful, tender. It further emphasizes how much power music can have, especially when connected with something else.
I don't often shill here, but this is worth whatever you pay for it. Here's the text from Moontoast/Watertower Music:
Aurora by Hans Zimmer: 100% of the proceeds from Aurora will be donated to Aurora Victim Relief organization through GivingFirst.org.