(Credit: Daniel Welch) Baritone Johnathan McCullough is no stranger to being a versatile singer. He is a singer who has performed at many of the world’s great stages including Opera Philadelphia, Komische Oper Berlin, English National Opera, Opéra de Lausanne, Portland Opera, Wolf Trap Opera, and Opera Theatre of Saint Louis, among others. He is also a director whose “Soldier Songs” {…}