To add a video for Hans Huber / Sonata for violin & piano No. 6 in D minor, Op. 116 (Appassionata), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Hans Huber / Sonata for violin & piano No. 6 in D minor, Op. 116 (Appassionata)