The New York based Michael Eaton, a native of Liberty, Missouri, is back in town. His appearance at Westport Coffee House on Thursday, July 14, is likely to be the most obstreperous of his several gigs in Kansas City. Billed as “Expression: The Late Music of John Coltrane,” the saxophonist will be joined by Kyle Quass, a trumpet player from Indiana, and a cast of Kansas City ringers.