Audio reactive visuals exist to celebrate music. Working as a VJ I need highly interactive and adjustable programs to collaborate with musicians as they perform. Working within a real-time programming software, the visuals shown are not an animation but are created as the music is played. Playing different music in the same program creates different effects. Below are two examples from the same program.
Images below depict the node-based network created for this program.
Software: TouchDesigner, GLSL