Not really live in a library but at least in front of a library and organized by a library is this song. World’s famous Molly, Jojo & Daddy are performing a song called “Mirador”. It’s orginally by the Danish band Efterklang. I doubt that they can perform this song as intense as Molly, Joho & Daddy do. But you can check yourself at Efterklangs current tour through Europe.
If you find nice clips of live gigs in libraries please tell me in the comments! All songs will be tagged with “live in the library“.