Bharti Kher's work encompasses painting, sculpture and installation. Among her signature materials, she uses ready-made, colored vinyl bindis to create spectacularly vibrant paintings. The bindi takes its name from the Sanskrit word “bindu,” or dot. Since first appearing in her work in 1995, the bindi has telegraphed aesthetic and cultural duality, and a means to mix the superficial with the sublime. "Many people believe it's a traditional symbol of marriage while others, in the West particularly, see it as a fashion accessory," Kher has explained. "But actually the bindi is meant to represent a third eye – one that forges a link between the real and the spiritual-conceptual worlds."

In Symphony the thousands of differently coloured bindis form fireworks and swirls of movement, which vibrate in the eyes of the viewer.