Video demo here, here, here, here and here.

A general setup, which offers mesh conforming particle movement to any mesh. The noise distributed point based Geometry Nodes "particle system" is constrained to a custom mesh with audio value driven rotation. The files come in two variation (a Cube and a Sphere) as an example of different meshes.

The setup with additional curl noise-controlled movement away from the surfaces is available under the name "Surface Swirl Flow".

There are multiple variations of the setup 1. Cube 2. Sphere 3. StretchSphere 4. Speaker

Happy Blending !

NOTE 

(Since it is a concept demonstration, it is kept as simple as possible.) The GeoNodes trees are kept clean, the nodes are not contracted into nodegroups for easier readability and have detailed explanations.)