Chicago early-music ensemble Third Coast Baroque will mark its pandemic-delayed return to full-scale mainstage productions with 'Lucifera: Illuminating the Darkness,' a new project conceived and headlined by mesmerizing mezzo-soprano Vivica Genaux, with the period-instrument Third Coast Baroque Orchestra, led by its Argentina-born, Vienna-based music director Rubén Dubrovsky conducting from the colascione, a lute-like instrument rarely seen in North America.