To add a video for Gabriela Montero / Prelude in C (after Bachs The Well-Tempered Clavier, Book 1 (BWV 846)), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Gabriela Montero / Prelude in C (after Bachs The Well-Tempered Clavier, Book 1 (BWV 846))