Do you speak English? Next time you’re at Giralda, can you try doing some Videos of the Bells ringing in Landscape View? Landscape View would allow to view the Bells better, especially closeup via zooming in. In fact, just out of curiosity, do you have a Tripod? ‘Cause perhaps that you can try filming the Bells ringing in a more steady view, & especially for the Bells to be seen better, when watching the Video later on.