Once Upon a December (Piano Solo) Sample   Lesson Sample  (Late Beginner) In this All-Audio lesson you will learn a piano arrangement of "Once Upon a December" from the movie Anastasia. This arrangement starts in B minor and then modulates to C minor and then C# minor. The arrangement is fully demonstrated at the beginning of the lesson and then each section is taught in two to four measure sections completely "by ear." Every finger and note is described as well as any unusual technique or fingering.