This collaboration between Digital FUN and Modern Sky musician — FRANKFURT HELMET is very special. Within the limited venue space, we operated two 20W laser machines that usually appear in car conferences. Each piece of music by the musician was analyzed and arranged in detail. TouchDesigner was used to design a preview of the Pangolin laser control box. This preview fully simulates the shape, color and real optical path deformation of the laser. With the blessing of such a preview system, it is possible to quickly communicate with musicians and execute the creative ides, and only then will the performance far exceed expectations.