The main idea is that it runs an FFT on the music and displays psychedelic stuff in full screen, using your parameters. The latest version supports add-on programmed in C++. Sample code for creating add-on is included in the archive. I encourage anybody to fell free to create and dispatch such add-on, as well as I expect anybody to criticize the program architecture, especially the points noted in the todolist or the readme. To run this, you need an audio CD device and the datatypes library.