American Composers Orchestra concerts “are always fascinating … frequently exhilarating forays into recent music—or music that was written decades ago but is still fresh” (Newsday). The orchestra performs a new work on the subject of migration by Pulitzer Prize–winning Chinese composer Du Yun, co-commissioned by Carnegie Hall. There’s also a Feldman work inspired by ancient manuscripts found along the Silk Road and Gloria Coates’s daring exploration of unconventional string tuning.