Watch: Mario Batkovic performs on the beach at Into The Great Wide Open Mon Sep 25th mario batkovic Earlier this month, Bosnian accordion virtuoso Mario Batkovic performed at Into The Great Wide Open on Vlieland. Vrije Geluiden was there to capture a session with Batkovic on the beach. Watch below. "Batkovic’s technique and imagination serve to show that the accordion is not only versatile in the amount of noises it can make but also deeply powerful in the different atmospheres it evokes" - Clash Mario Batkovic performs at Le Guess Who? 2017 on Saturday, 11 November, as part of the program curated by James Holden. Also performing that day are a.o. Pharoah Sanders, Moon Duo, Maâlem Houssam Guinia, The Bug vs Dylan Carlson of Earth, Jambinai, Farida & The Iraqi Maqam Ensemble, and many more.