Many neighborhoods in the District tend to go through a rather predictable routine. They start as fringe areas, slowly attract residents and business owners looking for good deals on housing and commercial properties, see an influx of newcomers as word spreads, and soon become the city’s next hot destination. And throughout the process the usual conflicts tend to emerge — between old and new residents, between local and national businesses. Yesterday the rather tranquil Barracks…

Today’s kids probably think rappers have always been purveyors of commercial goods. 50 Cent has Vitamin Water. Diddy and Burger King are partners. Common probably even folds every shirt at The Gap. However, there was a time when rappers weren’t viable salespeople because their music wasn’t reaching a broad segment of the population. In 1990, a Bay Area entertainer who went by the moniker MC Hammer helped set rap on track to be a cultural…

We successfully sailed the ocean blue and are back with this week’s shortened music picks. TUESDAY >> It’s an early show/late show kind of night at the 9:30 Club (directions from DCist Maps). Come by at 6 p.m. to catch Anna Nalick, the songstress TV networks love to dramatize commercials with, for $15. Pound a Red Bull and stay for the late show as Blues Traveler gets all your harmonica lovin’ ya yas out. $25,…