Sin is a live recording of the King's Kaleidoscope worship set from Mars Hill Church Ballard's 2011 10:30 p.m. Good Friday service. It is eloquent, sweeping, gut-wrenching, devastating, and beautiful all at the same time as the album seeks to convey the events leading up to and at the foot of the cross of Jesus. It's some of the most intricate and unabashed music we have heard.