Tonight, a man-made constellation will light up the eastern edge of the sky in bursts of red, white and blue.
Nearly one million people are expected to fill Grant Park for this year's fireworks display. And as the beautiful array awes the crowd watching from the park, still more will experience its beauty while camped out along the beach, on sea craft, and on rooftops along the Chicago skyline.
But for Chicagoan Ranjit Souri, tomorrow is when the real beauty takes place. And it's not just the rocket's red glare, but also the aural beauty that accompanies it.