Futuristic Light Waves in Gradient Spectrum

abstract digital light art, diagonal wave of glowing vertical equalizer-like bars sweeping from upper left to lower right, dense black ribbed background with subtle vertical grooves, luminous gradient spectrum transitioning from warm golden yellow and orange into red, magenta, violet and deep blue, soft bloom and neon glow, high contrast, smooth blurred light trails, sleek futuristic audio waveform visualization, minimal composition, cinematic darkness, glossy luminous texture, ultra sharp digital render