A Extraordinary Christmas

Although six years had passed, at McKinley High School in Ohio there was still a Glee Club: it is true that there are that time cannot change.
From a room, not far away, voices could be heard and also something else incomprehensible that attracted everyone's attention. Every person who passed by could not stop and look, take a small dance step or die to the rhythm of the music; gestures, movements of brief moments that repeat themselves over the years, remain unchanged: the music, a singing room, the children and a certain professor.
It all started right there and it all ended in that room; a new beginning, in fact, was looming on the horizon.
NOTES: The story was written for the "And it's Christmas now" contest, organized by Prince Dracula on the Facebook group "EFP reviews, tips and discussions."