To add a video for Niels Gade / Octet for 4 violins, 2 violas & 2 cellos in F major, Op. 17, just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Niels Gade / Octet for 4 violins, 2 violas & 2 cellos in F major, Op. 17