Part of composer, saxophonist and organ improviser John Zorn's 70th birthday celebration, this 12th volume in his The Hermetic Organ series finds Zorn performing on the two organs at the Grote Kerk (Great Church) in Den Bosch, The Netherlands, first solo and then with John Medeski, in a tribute to the 15th century proto-Surrealist painter Hieronymus Bosch.

The fifth album from John Zorn's Chaos Magic Ensemble of Brian Marsella on Fender Rhodes Piano, John Medeski on organ, Kenny Grochowski on drums and Matt Hollenberg on guitar, in three free flowing works that display Zorn's perceptive merging and the band's enormous skill, contrasting lyrical electric jazz with turbulent rock forms and disciplined contemporary structure.