The Microsoft Store offers 50 Free MP3 Albums via its Music Deals app. Many of these albums cost at least $9 on iTunes and Google Play. Choose from albums by ABBA, Bob Marley, CHVRCHES, Lady Gaga, and more. View the whole list by looking under Holiday Freebies in the Microsoft Music Deals app.

Note, you will need and Windows 8.1, Windows Phone 8, or Windows 10 Tech Preview to claim and download the songs.