Tucson, Arizona-based True Concord Voices and Orchestra present two works by the pioneering American composer Jocelyn Hagen. Based in Minnesota, Hagen composes primarily for voice — solo, chamber and choral — and has explored large-scale multimedia works, electro-acoustic music, dance, and opera. The Notebooks of Leonardo da Vinci has been performed more than 50 times around the world since 2019, …