To add a video for Sonia Wieder-Atherton / Cadenza the 3rd movement of Boccherinis Cello Concerto in C major, G. 477, just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Sonia Wieder-Atherton / Cadenza the 3rd movement of Boccherinis Cello Concerto in C major, G. 477