Some feared that ultra-violet rays from the concert lights would affect the marble.

ECONOMIST: Rock the Taj

They're not X-rays, or gamma rays, or ultra violet.

BBC: NEWS | UK | Magazine | Wi-fi worry

Interestingly, an April 18 paper in the journal Nature reported that upper limits for neutrinos measured from IceCube are low enough that gamma-ray bursts are unlikely to be the sole source of ultra-high energy cosmic rays.

CNN: Why gamma-ray burst shocked scientists