The Stones have superb opening acts. I saw B.B. KIng, Ike and Tina turner, Chrissie Hyne from the Pretenders, and others. These acts alone were the purchase price. It shows that the Stones are not afraid to have competition. The WHO and Paul McCartney-just shoot me until they come out. You are so glad that the opening act is over. The last WHO opener was so loud! I had paid a lot for the tickets. I was in tears b/c I thought the WHO would be just as loud. It was painful. I was going to leave.
I've read several places that for large rallies the Nazis played every irritating sound frequencies to the gathering crowd. They could not hear it but it put them on edge. When Hitler appeared, they stopped the noise. The people felt the relief and it made Hitler seem Messianic.