Some years ago, John Griffin, architectural designer and writer of the Flyer's Hot Properties column, described stepping into a room at a site he was reviewing. "The music doesn't stop," he wrote, "but it sure does swell." As the line suggests, Griffin has boundless enthusiasm for the well-crafted, a trait he recognized in the grand but neglected homes of the Greenlaw area in North Memphis. He's lived in and refurbished several homes in the neighborhood for nearly 30 years. He'll be delivering a lecture, "The First Developed Neighborhood in Memphis: Greenlaw and the Pinch," as part of the Memphis Heritage Great Neighborhood series, 7-8:30 p.m. at the Junior League of Memphis.