Love is the craziest of all feelings. It’s the topic of Mozart’s Don Giovanni and Wagner’s Tann-häuser, whose title character is hopelessly addicted to the goddess Venus. Romeo and Juliet seek out a shared Liebestod, while Stravinsky’s Petrushka gets fatally stabbed by his jealous rival. Matters turn chaotic in Handel’s opera Partenope when three love-struck princes vie for the favor of the beautiful title heroine.