To add a video for J. de Gruytters / La bergeri (or other keyboard instrument) (Johan de Gruytters Carillon Book, No. 55), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for J. de Gruytters / La bergeri (or other keyboard instrument) (Johan de Gruytters Carillon Book, No. 55)