To add a video for Franz Tunder / Nisi Dominus aedificaveritl, for 5 voices, 4 strings & continuo, just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Franz Tunder / Nisi Dominus aedificaveritl, for 5 voices, 4 strings & continuo