When the two young stars from the Curtis Institute of Music were summoned to a hotel room, one by one, to try out some high-quality violins, they were met with an odd sight. The room was divided in two with white sheets, and the violinists were greeted by scientists wearing tinted welder's goggles. "It was very mysterious and kind of weird," said Nikki Chooi, a student at Curtis since 2007.

