To add a video for Joan Voita / Sonata for violin & continuo No. 3 (Wiener Minoritenkonvent, Manuscript XIV 726: No. 72), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Joan Voita / Sonata for violin & continuo No. 3 (Wiener Minoritenkonvent, Manuscript XIV 726: No. 72)