210.42 Hz 是 Cousto 將朔望月（從新月到新月的完整週期）提升為聲音的八度音。在傳統中，月亮象徵著潮汐、情感與韻律。 它聽來如潮水般起落流轉，適合用於沉靜身心，以及循環、安歇的修習。 在《The Cosmic Octave》（1978）一書中，Hans Cousto 提出了一套簡潔而精確的方法：取一段天體週期，無論是公轉、自轉，或是一個朔望月，將其頻率一次次加倍，一個八度疊著一個八度，直到升入耳可聽聞的聲響。如此，太陽系中的每一個星體，都化作一支專屬的調音叉。這套系統即是那張完整的音表，從水星輕快的音色，到冥王星緩緩擺盪的低吟。 Independent of any tradition, controlled clinical evidence that a specific frequency produces a specific health effect is limited and mixed. Auriviel presents these tunings as music and contemplative practice. This page is for general information and relaxation. Auriviel's frequency music is not medical advice, diagnosis, or treatment, and no health outcome is claimed. If you have a medical concern, please consult a qualified professional.