The music in the Aftershock neighborhood lasts for over 2 minutes. It's a grinding tune that ceases to be ambience and becomes distraction at that length.
You can't really get anywhere in Faultline without passing through this. You might even pass through the dam and reach the other end of the map before it concludes. It seems like most neighborhood music fades at around 1 minute - could Aftershock be made to follow suit?