At Roadburn, there is seldom a shortage of music that defies description, but Neptunian Maximalism exist in a sonic realm several steps beyond that.

Last year's extraordinary Éons album invited listeners into an entirely alien and exhilarating new world of sound, where ancient and ritual percussions and atmospherics collide with a densely lysergic strain of avant-garde doom, scorched-earth free jazz and an irresistible fog of tweaked-out spirituality.

Unleashed on a stage, the possibilities for this utterly unique and amorphous ensemble are limitless.

The Belgians' Roadburn Redux set is guaranteed to be a life-changer.