Northeast Ohio’s music scene is likely to change dramatically with the arrival of AEG. The world’s second-largest concert promoter is taking over the storied Agora venue, in a building in Cleveland's midtown that began life over a century ago as an opera house. For this week’s Shuffle, Cleveland Scene music writer Jeff Niesel explains why the takeover is good for Cleveland and music fans. Good for Cleveland: The Agora will join the more than 60 venues AEG owns or operates nationwide. AEG and