coronavirus pandemic, playing at the Shed in Brookfield Place, about 2 miles from its under-renovation Geffen Hall at Lincoln Center for the Performing Arts.“I’m kind of on a euphoric high right now, because I missed it more than I realized,” concertmaster Frank Huang said afterwards.There was a reduced force of 23 strings — all masked — and no brass or woodwinds for a program that lasted one hour: Caroline Shaw’s “Entr’acte,” Jean Silbelius’ “Rakastava (The Lover)” and Richard Strauss’