The night air is getting chillier here in downtown Spokane. Summer is officially winding down. School started this week, but every hip cat from Lewis & Clark down to Shadle Park High seemed to be at The Empyrean this night. It was obvious they were here mainly in support of a few of their friends, known as Sassmatrons, coming on stage who, despite their youth, showed an immense amount of energy and potential and a very broad range of talent. Despite having a less-than seasoned approach …