I’m trying to create a waveform of a song but cannot figure out how. I’m looking to do something like this http://www.youtube.com/watch?v=pb6mnbQIIgU
May be you can modify Blender 3D electric spark effect.
Maybe you can combine your spline effectors with this very nice method:
(Tutorial linked: http://www.youtube.com/redirect?q=http%3A%2F%2Fwww.blendercookie.com%2F20 11%2F06%2F02%2Fbuilding-an-audio-visualizer-in-python%2F&session_token=kFjPQCst1gkTfHgS7A-V3jUPjbd8MTMzNjMwOTgyNEAxMzM2MjIzNDI0)