Yuja Wang interview: ‘For 15 months I stopped playing piano, just pigged out and watched Netflix’

• “Imagine playing the piano on the Moon,” says Yuja Wang, grinning. The 37-year-old concert pianist mimes a slow-motion bounce from thumb to little finger and laughs. I’m mesmerised by her small, sinewy hands, which are more often seen in a blurred frenzy as she fizzes through an encore of Rimsky-Korsakov’s Flight of the Bumblebee.