Minimum of two – poet & reader. Sometimes poet & reader coincide.
Still two voices. Think of it as public & private.
Not sure why I remember this. At a dinner party a poet-friend gave voice to vegetables. One of her best performances, totally out of character and believable. Eggplant will never be the same. Consider, Georgia O’Keeffe’s small painting of the same. Think of my favorite Thai restaurant, Jitlada, and Chef Pai’s way with eggplant. Like I said, two voices.