Young@Heart is a New England senior citizens chorus that has delighted audiences worldwide with their covers of songs by everyone from The Clash to Coldplay. Based in Northampton, Massachusetts, the group is made up of two dozen spirited seniors who specialize in reinterpreting rock, punk and R & B classics from a unique perspective. Their lineup includes former schoolteachers, executives, doctors and food service workers, and the chorus is guided by their longtime director Bob Cilman. With less than two months to go until a one night only concert in their hometown, the performers struggle with the new lyrics and unfamiliar melodies of seven new songs. During their thrice weekly rehearsals, they gradually take possession of music ranging from R&B classics like Allen Toussaint’s “Yes We Can Can” to Coldplay’s emotionally powerful ballad “Fix You,” upending assumptions about old age, love, sex and death.