To add a video for George Onslow / String Quintet No. 31 for 2 violins, viola, cello & double bass (or cello) in A major, Op. 75, just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for George Onslow / String Quintet No. 31 for 2 violins, viola, cello & double bass (or cello) in A major, Op. 75