Allan Pollack will open this concert by conducting his own “Scenes from the Pandemic,” inspired by sounds he heard while sheltering in place on his farm. Stephen Prutsman will play Grieg’s Piano Concerto in A minor, Op. 16, the atmospheric tone poem for piano and orchestra. Before the magic has evaporated from that performance, Dvořàk’s Symphony No. 9 in E minor, Op. 95 will transport us to “The New World.”