There’s a clubhouse vibe tonight at Chad Stokes Urmston’s place. Enough people are in the house right now— maybe a dozen—that my arrival goes more or less unnoticed. Urmston and Dispatch bandmate Brad Corrigan are standing in the living room, eating bowls of Raisin Bran. The TV is tuned to a January playoff game between the New England Patriots and Pittsburgh Steelers. There’s a camera…