The same more advanced audio analysis made in Lightjams to detect the BPM, BAR and tension is now available in LJLM.
The interesting part is that these new audio variables are available when creating a custom effect (GLSL shader). So you can really sync the effect to the tempo.
Here's an effect using these new variables along with the new feature allowing to define any number of parameters. It also shows the BPM and the BAR and beat phase.
Enjoy!