WNMF 2016 opens with major works by American composers David Lang and Joan Tower, plus a special commission from festival co-founder Glenn Buhr. Behind every one of Lang’s pieces is a fascinating concept being worked out as he gives musical form to the ideas of both Man and Nature with the assistance of ensemble/soloists So Percussion. Tower’s Grammy-nominated Concerto for Orchestra is a magnificent story of how an idea grows from the previous ideas in the strongest and most natural way — a lesson the composer learned from the music of Beethoven.