Abt Archimandrit Johannes von Buchhagen is a German Orthodox abbot and chant composer known for establishing the Holy Trinity Monastery (Dreifaltigkeitskloster) in Buchhagen in 1990. Centered on Eastern Orthodox monasticism adapted into the German language, his musical approach focuses on transforming traditional Byzantine liturgical traditions into authentic German-language Orthodox chant. Central to this musical adaptation is his utilization of Naturtongesang (natural tone singing), a specialized vocal technique rooted in the natural overtone series. By aligning liturgical chant with natural acoustics and resonant intervals, he seeks to create an organic, acoustic reality that mirrors the Divine order, serving as a acoustic bridge where ancient Orthodox spirituality and authentic German-language meet.