Load track plays an audio file from your phone through the analyser (looped), or use the mic — one source at a time. Every effect is sound-modulated: Fire runs hotter on bass, Ice frosts on treble, Neon's split rides the mids; Flash strobes white on each beat, Blackout chops with the bass, Invert flips on the kick, Hue spin rotates with mids/treble. Reactivity scales all of it, and bass mid treble vol beat stay available in expressions.