Chopin's - Nocturne op.9 No.2 . I do not remember which movie I heard it in but it is beautiful. I hope you don't mind the YouTube link below.Nice post and great music pieces @cmp2020. The one I adore is
And since you mentioned Christmas songs, you can always listen to my list, posted just a couple days ago - https://steemit.com/christmas/@k4r1nn/and-what-is-your-faveourite-december-song
thanks