The Museum of Transitory Art in Ljubljana, Slovenia is live streaming a concert that’s happening on a raft by the Three Bridges in the Ljubljanica River right now. It started an hour ago but the stream’s just been set up, and you can catch it here. The performer is non other than SHAPE artist Hildur Gudnadottir, an Icelandic cellist who opened for noise gods Sunn O))) in Berlin a few weeks ago and will appear at some of the experimental festivals we listed yesterday in our list of Europe’s best fall avant-garde events. In fact, this one-off event is a warm up for SONICA, one of our picks. Check out the rest here.