The songs are available on google play. the links are unusable on the wiki page, but the songs are available on this link: https://play.google.com/store/music/album/David_Schweitzer_Angry_Birds_Stella_Original_Game?id=B7ogzi3nkthy6j5pqnm7uitz25a&hl=en_US
The songs are also on apple music with this link: https://music.apple.com/us/album/angry-birds-stella-original-game-soundtrack-single/1394531530
I would update it myself if i could edit the page, but the page is locked.
If i could edit the page, the links would be accessible.