Well, this might not make your day, but it was certainly a pleasant surprise for me!
Thanks to the Library of the Universidad Complutense in Madrid, I can happily paw around in this 1515 chant manuscript in the comfort of my own home and without having to wear those little white gloves so beloved of archivists! And there are lots of treasures to enjoy!
What a happy marriage of the past and present!
(Apologies for the inelegant logo – but my image-scaling skills are at a low ebb this morning.)