Billy Joel plans to play monthly shows at Madison Square Garden for as long as the public is interested. Follow his first year of this groundbreaking music-industry experiment by looking at his shows through a variety of viewpoints -- from critics, musicians, celebrities and fans. Here, Glen Cove's Harlan Friedman, former WLIR DJ and current owner of Oyster Bay-based The Harlan Group, weighs in on Joel's July 2 show.