Joaquin Robles

I cant wait for the Joanne World Tour in NYC tommorrow but i don't understand why Gaga cut 5 songs away from the album for the tour outdoors. I thought the main purpose of the tour was for the Album Joanne. And only 8songs have made it to the show, 9 including the cure. I don't understand i just feel like the new fans as us who will want to see is disappointing to know our favorite songs have been cut.