Snowy Night by MariusloannesP
Link - http://www.fimfiction.net/story/122674/1/snowy-night/the-first-winters-snow

"After releasing Snowdrop's first snowflake into the first winter's snow, Luna reminisces about the last time she saw Snowdrop before becoming Nightmare Moon. After going to bed and commencing her dreamwalking for the night, she runs into said friend in her own dreams."

Music used -  Christmas Canon (1998) by the Trans-Siberian Orchestra
I own nothing in this video.