projectM: projectM (cross-platform music visualization) projectM: projectM: projectM is an open-source project that reimplements the esteemed projectM: Winamp Milkdrop by Geiss in a more modern, cross-platform reusable projectM: library. Its purpose in life is to read an audio input and to projectM: produce mesmerizing visuals, detecting tempo, and rendering advanced projectM: equations into a limitless array of user-contributed visualizations. projectM: projectM: projectM: projectM: