 in the English translation of Riemann's "Vereinfachte Harmonielehre".Among the few usages found in scholarly literature to denote the 'chord of nature', one may quote Ruth Solie, who speaks of "the major triad or "Naturklang" as found in the overtone series", or Benjamin Ayotte, who refers to an article by Oswald Jonas in 1937 which apparently makes use of the term.The confusion by which the term has been used to denote a chord (instead of a complex sound) probably arises with Rameau's theory of "Résonance".