(Mural Amphitheater) It's August already, y'all—Seattle's got some summer cramming to do. Our weather-challenged corner is nearing the end of its brief annual transition from sulking mildew rag to glorious, shorts-wearing, vitamin-D-powered sun freak. Have you gone outside enough? Have you seen enough music? How about FREE, ALL-AGES MUSIC on a lawn with the Space Needle in the background?? The Seattle Center and KEXP have teamed up to bring you a handful of outdoor music shows this month at the Mural Amphitheatre. This week, get wild with scathing garage gods Mudhoney, hardened blues-rock twosome the Grizzled Mighty, and pleasing popsmiths Dude York. Man, I hope it's not raining when you read this.