ماخذ: Per Nørgård. The 64 states of being should be thought of as an eternal, hidden cycle which lies behind everything that we do. PERC.
ترجمه: میانگین پستها در طول Nørgård. I اعظم. نت موسیقی. دق. در طول Norgard. Per Nørgård I CHING Programme Note I CHING. 1982.
