Duelin' Viola brothers "Salt Thief" are back at Tractorgrease Saturday, June 8th. Individually, John and Tony could each be a one man band. They hold down a rare groove with full baritone voices, shredding violas, and thunderous foot percussion. As a duo they are a force of nature. Never afraid of ANYTHING, their shows are a raucous mix of original songs and fresh spins on old favourites. Possessing the hearts, ears, and skeletons of folks since December 21, 2012. ticket. Tickets · $15via Eventbrite. Find Tickets