Summer is still burning in North Texas, but with local schools starting back next week, there is definitely a feeling of fall in the air (even if it’s just delirium caused by heat). With that feeling comes some nostalgia, and naturally, with nostalgia comes anniversary tours to North Texas — four of them this week, to be precise. Celebrating somewhere between 20 and 30 years of their best music, New Found Glory, David Gray, Franz Ferdinand and Crash Test Dummies will take to various stages around town to remind fans of who they are and where they have been together.