Vox Venti and Guest Director Kirsten Hedegaard present their season opener, "Cosmos." The concert focuses on outer space, “the spheres,” and all it represents in literal and metaphysical senses, featuring works by Stephen Barton, Melissa Dunphy, Eriks Ešenvalds, Joanne Metcalf, Karin Rehnqvist, Kevin Siegfried, Kile Smith, and Timothy Takach, plus the world premiere of Gabriel Jackson’s Sweet Melody Amidst the Moving Spheres.