To add a video for Carl Tausig / Deuxieme Suite: Valse-Caprice no. 4 in E major (after Strauss Jr., op. post), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Carl Tausig / Deuxieme Suite: Valse-Caprice no. 4 in E major (after Strauss Jr., op. post)