sound wave. neon light abstract background with ultraviolet spectrum wave on dark background. synthwave music equalizer danced to

abstract background sound wave music equalizer neon light blue pink glow laser wallpaper gradient synthwave show line panoramic virtual retro dark cyber wavy power 80s disco geometric graphic pulse spectrum futuristic energy rhythm fluorescent panorama violet electronic club ultraviolet illumination chart digital black technology vibrant purple concept pattern generative wave background danced rhythm