Horn is a prolific solo black metal project from German multi-instrumentalist Nerrath active since 2002. The earliest recordings from Horn were raw, bedroom quality black metal demos exploring the extremes of Burzum, Ildjarn and perhaps some influence from Graveland. Admittedly these comparisons come from the rough sound of those first two demos and the atmospheric black metal style employed would be expanded upon across several full-lengths afterwards. Nerrath‘s themes pay tribute to the natural landscape of Germany set to epic pagan black metal that enthralls from the start of his so far seven full-length discography. ‘Retrograd’ is no great outlier but rather an unexpected result of persistent melodic ambition, some mild experimentation and steadily improving fidelity.