To add a video for Sergey Mikhaylovich Slonimsky / Preludes and Fugues (24), Book 2 (Nos. 13 - 24), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Sergey Mikhaylovich Slonimsky / Preludes and Fugues (24), Book 2 (Nos. 13 - 24)