Volta announced today the exhibitors for its 2015 edition, which returns the fair to the Markthalle, Basel’s iconic cupola located in the city’s center, from June 15 to 20 during Art Basel. For the fair’s eleventh edition this year, exhibitors were encouraged to look to Nigel Tufnel’s quote from rockumentary This Is Spinal Tap, “turn it up to eleven!” As a result, many of the curated projects on view will be likewise “amped up,” featuring a majority of solo and dual-artist booths and, to quote a press release, “thought-provoking conceptual dialogues.” As seen in the exhibitor list below, the fair will host 69 galleries from 19 countries and 36 cities around the world.