Position II illustrates the position of the bridge when the vibrato arm is pushed down towards the guitar body. The bridge rotates around a pivot point counter-clockwise and the tension in each string decreases, lowering the pitch of each string. The sound of any notes being played becomes flat. While the tension of the strings decreases, the tension of the springs increases. It is the balance between string-tension and spring-tension, as well as the fact that the strings end at the bridge saddles and nut (eliminating "play" in the string, which would negatively affect tuning), that brings the strings reliably back into tune when force on the bar is removed.