Aston Magna presents “Monteverdi’s Warring Lovers,” with Il Combattimento di Tancredi e Clorinda, Lettera amorosa, Tempro la cetra, and other operatic madrigals. The concert features return performances by soprano Dominique Labelle, Frank Kelley and William Hite, tenors. Instrumental works by Castello, Marini and Cima. Aston Magna Artistic Director Daniel Stepner, Baroque violin, leads each event and delivers a pre-concert talk one hour before each performance.