It's a small tent, the folk-classical-early-music pavilion, and it's guyed into place with delicate threads.
But that is part of why we go there and stand inside it with our mouths open. Arianna Savall (daughter of Jordi) is a harpist and singer with a boy's treble. Petter Udland Johansen plays twangy/scrapy things and sings. Their ensemble splices elements of Nordic and Mediterranean tradition into a drifting, formal but ballasted slow dance. Gorgeous.