Theta brain oscillations might help you navigate your world.

How certain brainwaves implements a GPS system for spatial navigation.

These brainwaves might help remember the locations to which a person is navigating.

Rhythmic fluctuations in brain activity, so-called theta oscillations, may play a role in this process.

Theta oscillations, during which brain activity changes at a frequency of approximately four hertz supports spatial navigation.

Theta Cycles – gamma were used to classify EEG waves falling into specific frequency ranges, with “theta” generally meaning a range of about 4-7 cycles per second (Hz).

Theta is used in healing practices and shamanic traditions, like with drum and rattle, which can alter the consciousness of the practitioner/healer to go into a variety of trance states.

This is rock music. Literally.It was here that Dr. J. J. Ott performed for the Buckwampum Historical Society in June 1890, for what is probably the first rock concert in history.
These chime-like sounds come from geological phenomena known as ringing rocks. Physically, they look no different from regular rocks, but it’s not until you lightly strike them with a hammer that the rocks reveal their sonic secret.
Also known as sonorous rocks, these audio boulders can be found in various locations inside the 128-acre Ringing Rocks Park in Southeastern Pennsylvania, including Stony Garden in Bucks County, Devil’s Race Course in Franklin, and Pottstown in Montgomery.
But a more interesting discovery is that, while only 30% of the rocks ring, they generally ring in the tone of B flat. Now, why is that more interesting than finding out the sound produced by the rocks are ultimately site-specific, existing in synergy with its surroundings, wherein any incremental change can dramatically affect its acoustics, you might ask? Because B flat is what a supermassive black hole sounds like.
Back in 2003, NASA’s Chandra X-Ray Observatory detected sound waves are coming from a black hole 250 million light years away from Earth. It turns out, it’s been humming a B flat that’s 57 octaves below middle C for close to 2.5 billion years.

A binaural beat is an auditory illusion perceived when two different pure-tone sine waves, both with frequencies lower than 1500 Hz, with less than a 40 Hz difference between them, are presented to a listener dichotically (one through each ear). The 4HZ that is referred to is the difference between the two tones which creates another tone which is referred to as a beat. The same effect is achieved when tuning a guitar with a tuning fork. As you get close to the correct frequency, you will hear the “beat” or difference between the two slow until the tones are the same.