Maybe you could generate a list of points in the exact shape of a sphere (or whatever), then use the result of Calculate Amplitudes for Frequencies to perturb each point.
There's probably some formula you could plug into Calculate List or Make Parametric Points to generate points along the surface of a sphere. Make Parametric Grid Points could also be useful.
Once you generate the list of points, you could feed that into an Add Lists node and have the other input come from Calculate Amplitude for Frequencies.
Then you could feed the resulting list into the Transforms port of Copy 3D Object (TRS + Material). And you could feed a list of colors into the Materials port that is also controlled by the output of Calculate Amplitudes for Frequencies.
Or maybe another way to approach the problem would be to use Displace 3D Object with Image. You could use the result of Calculate Amplitudes for Frequencies to draw points in an image (appropriately distorted to map onto a sphere), and use that to distort your sphere. And you could draw points similarly but using the result of Calculate Amplitudes for Frequencies to control the color, and use Shade with Unlit Image to color points or areas on the sphere.
2 things, you have connected the split text to a drawer of the Cycle through list node and that has added an auto collapsed node First Item so you only are retrieving the first Item so you cannot cycle through them. Connect the list to the main port right to the drawer instead.
Then instead of connecting the Fire Periodically to the node start triangle port, connect it to the 'Go Forward` port.
That way it should work.
PS : Jaymie, I added a comment again instead of an answer, sorry.