Hi Wendy! I tested Pycarrara when Fractal Dimensia had carried us out Pyswarm (2 years ago?). I played with the presets to modify them with music and successfully. I do not remember any more if I had found a logical answer to various handling. I would like to still test it, but I don't manage any more to install Python 3.5 (it wants an update of Windows, and I don't want!). I sought after version 2.7, but it exists yet only for amd and does not install with pentium. It is sad that Frederic Ribble gave up this “plugin”, it was very promising. A good solution: the use of AE with Element3D, there is also a plugin Trapcode to animate with the music I think but, it is not the goal here and it's another story... https://www.youtube.com/watch?v=phm4v0x7b0U