Double Row EQ — the music highway
The Double Row EQ pictures your music as a sonic highway: two parallel equalizer rows face each other, one sky-blue (front row), the other orange (back row). Between them runs a line of glowing yellow dashes — the road's center line. Musical notes (♩ ♪ ♫ ♬) continuously travel along this road, moving in one direction then the other, soaring skyward during energy peaks.
What you see
Two sets of thin bars rise from their respective rails: blue for the front row, orange for the back. Each bar in one row responds to the same frequency band as its twin across the road: when bass lifts the central bars, both rows rise simultaneously, creating a mirror-symmetry effect. Twenty-eight musical notes travel continuously along the central road, diving down from above before heading off in the opposite direction.
Dynamics and colors
The color of the blue and orange bars evolves with intensity: they brighten and glow during power surges. The camera slowly pivots around the scene, alternately revealing the two rows in perspective.
Technology
Two sets of DUO_BARS BoxGeometry bars positioned at z=+2 and z=-2. Musical notes rendered via THREE.Sprite with CanvasTexture (4 alternating symbols). Each note has a state machine (fall → travel → fly) updated every frame. The camera performs a slow orbital rotation around the Y axis.