To add a video for Charles-Valentin Alkan / Marche triomphale in B major, Op. 27 (or Op. 24), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Charles-Valentin Alkan / Marche triomphale in B major, Op. 27 (or Op. 24)