This is Aurora Aksnes from Norway (not Aurora, the electronic band).

It's FLACed PCM at 16/44.1 (CD quality).

This is from aurora-music.com as a free download that you have to jump some hoops to get.
Here's the song minus the hoops.

The hoops:
On Aurora's SoundCloud:
https://soundcloud.com/auroraaksnes/aurora-walking-in-the-air
...contains a link to the download. Note the link on the page has a typo. The good one is on Youtube:
http://zaphod.uk.vvhp.net/vvreg/10955-435343
That link is full of privacy issues if you complete it with Facebook or Spotify. I used just an email address which only gets one on the mailing list.

If you like the music, please show your support and buy the music. She's really great live too so go to a show if you can.

https://www.amazon.com/Awakening/dp/B0792RPKYS/
https://www.amazon.com/Running-Wolves-AURORA/dp/B07ND91ZHV/
https://www.amazon.com/All-Demons-Greeting-Friend-Deluxe/dp/B07ND9WK4J/
https://www.amazon.com/Infections-Different-Kind-Step-I/dp/B07Q3ZBRJH/

some links:
https://www.discogs.com/artist/532900-Aurora-16
https://en.wikipedia.org/wiki/Aurora_(singer)
https://www.youtube.com/results?search_query=Aurora
https://www.facebook.com/iamAURORA
https://www.aurora-music.com
https://soundcloud.com/aurorasource
https://soundcloud.com/auroraaksnes