# Learn

- [What are binaural beats? A guide for producers and sound healers](https://sacredaudioplugins.com/learn/binaural-beats.md): Binaural beats explained: how two slightly different tones create a beat inside the head, the brainwave bands, carriers, isochronic pulses, and how to use them in music and sound healing.
- [What is a crystal grid? Layouts, centre stones and how to build one](https://sacredaudioplugins.com/learn/crystal-grids.md): Crystal grids explained: the centre stone, the inner and outer rings, the sacred-geometry layouts (Seed of Life, Flower of Life, Metatron's Cube, Tree of Life), stone choices for common intentions, and how to play a grid as music.
- [What is cymatics? Chladni figures, water patterns and sound made visible](https://sacredaudioplugins.com/learn/cymatics.md): Cymatics explained: how vibrating plates and water draw geometric figures, Chladni and Hans Jenny, what decides the pattern, and how to see cymatic patterns from your own music.
- [The King's Chamber acoustics: why the Great Pyramid's granite room rings](https://sacredaudioplugins.com/learn/kings-chamber-acoustics.md): The acoustics of the King's Chamber in the Great Pyramid of Giza: its granite 2:1 room, the coffer that rings around 117 Hz, standing waves, and how to use the room as a reverb.
- [The Tree of Life as a 3D audio path: sacred geometry in spatial sound](https://sacredaudioplugins.com/learn/tree-of-life-spatial-audio.md): How the Kabbalistic Tree of Life and Metatron's Cube can guide sound through 3D space: the ten sephiroth, the Lightning Flash, the Middle Pillar, and binaural spatial audio for music and meditation.