punish/vacillator on tour

i love these two songs to absolute oblivion, and i am so beyond thankful my concert is in a month-ish to where i get the chance to hear them live. has anybody found a pattern of where she sings punish comparative to singing vacillator every night? punish is my favorite song ever written by her, and i know she does it whenever she feels like it, i have no idea how to convince her to sing it in barcelona , literally might go on etsy for a witch or send brain waves to her lol