Headphones are not required & is better if you don’t so your whole body can feel/absorb the benefits. Be careful there is alot of illusionary eye candy out there not providing you with the true visual sound pattern. I don’t recommend playing music or other tones along with this as other tones played at the same time may disrupt your Spiritual Sight/Awareness coming into focus. How is it that this is the true visual Spiritual Sight/Awarness pattern of this sound frequency? I generated the 852hz frequency and then played it back while at the same time I looked up videos of salt particles vibrating on a metal plate with high frequency sound projected at it. These particles shifted into specific patterns at different pitches. While listening to both the video’s frequency and my own 528hz I grabbed a snapshot of the image when both tones matched. Example: ca.youtube.com I don’t yet have a way to obtain the true color for this frequency, if you know a way please let me know and I will redo this video. Fabien Maman & Joel Sternheimer In 1974, Fabien Maman was working as a professional jazz musician. He noticed that certain musical keys had an energizing effect on both the musicians and the audience. Fabien worked with the French physicist Joel Sternheimer. Sternheimer had discovered that elementary particles vibrate at frequencies in accordance with musical laws. They found that body tissue, organs and acupuncture meridians each have a musical note. Ernest Chladni In the 18th …