You can enter the path to your sound file, press "Bake Audio" and the following will be executed automatically:
- 10 frequencies are baked
- Frequency nodes are generated
- The All_Frequency_VJ_Trip node will be attached to your mouse cursor. If the node already exists in your node tree, the node is left where it is.
- Your audio file will be added to the sequencer if you checked the checkbox.

The start frame is your scene start frame. The end frame is automatically adjusted to the length of the audio file.

You can only bake one track in a Blender file. The baked tracks are overwritten each time they are baked again.
If you would like to have a different starting point for your sound file, you can change the start frame of your scene and bake the file again. This is the only way to move the baked tracks.

The frequency nodes can be added via the Panel Menu or the Add Menu. Because All Frequency Node is only available in the Geometry Nodes. All other frequencies are available in Shading, World Shading and Compositing.

The frequencies are visible by linking the nodes in the Geometry Nodes to the output of the Geometry Nodes. The frequencies are placed at the position 0,0,0 of the world coordinates.

Important: The geometry output is only for illustration of how strong the frequencies are. What is used to influence settings is always the sound (value) output.

The difference from the individual frequencies to the All Frequency Node is that the individual frequencies have a minimum and maximum as additional settings. This allows you to adjust the sound to any situation.
The All Frequency Node only has the strength of the signals.

How strong the sound is in each case can be seen from the extrusion of the columns and from the numbers which indicate the exact numerical value of the sound at the bottom of the columns.

You can find the frequency nodes in the Audio Importer panel, or in the Add menu of each node editor.

The reason why the frequency visualizations are on there and not just in front of the camera, which might make more sense, is that I can't know what kind of camera settings someone is making. Just click 1 on your keyboard in the 3D View window and you'll see the frequencies beautifully. Or click on the -Y symbol in the 3D View window in the upper right corner.

The individual frequencies can influence everything. For example, the brightness of an emission shader.