Fill a crystal container, such as a vase or glass, two-thirds full of water. Add 1/4 tsp. salt for every 8 oz. of water, advises Jodina Meehan in the Journal of Cymatics. Choose a plain, clear container so you can easily view the experiment results.
Administer five drops of dark colored liquid dye (available at most hobby stores) in the center of the glass with an eyedropper, Meehan says. Don't touch the container -- allow the dye to descend on its own.
Hold the crystal firmly with one hand. Wet the tip of one finger on your other hand and run it around the container's rim to achieve a constant high-pitched ring. Continue moving your finger at a constant rate in the same direction.
Observe the water closely. Meehan notes that cymatic patterns will begin radiating through the water, creating a vortex in the center and making kaleidoscope-type patterns with the dye.
Place a bowl of water against one speaker and cover the output panel of the second speaker with matte board.
Connect the amplifier to the speakers and electronic device.
Create three distinct audio tone patterns or noise waveforms to play through the ToneGen application.
Observe the cymatic patterns each song forms. Record on video for comparison if you like.