To add a video for Cristofano Malvezzi / Sinfonia à 6 (I) from La Pellegrina (Primo Intermedio: Larmonia delle sfere), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Cristofano Malvezzi / Sinfonia à 6 (I) from La Pellegrina (Primo Intermedio: Larmonia delle sfere)