The embeded youtube video works/exists for me; I tested it before submitting the post. Maybe it's lj's embed code that's screwing things up, but if it doesn't work, the video clip can be found here.
Here's a longer version of that first song. The album for the series was released on Monday and you can get it on iTunes UK or Amazon UK.
Source 1 Source 2 Source 3
I'm still in awe of Angel Coulby's voice and the fact that her agent didn't even know she could sing. And the fact that she's so humble about it.