Atlanta’s music community is so vast an industry veteran can get lost in the mix. That’s not exactly what happened to Dean Roland, rhythm guitarist for the multiplatinum Stockbridge, Georgia band Collective Soul (and baby brother to its lead singer, Ed). But when Dean’s side project–the Britrock-influenced Magnets and Ghosts
, a collaboration with multi-instrumentalist Ryan Potesta–released its debut album, Mass
, in 2011, few trumpets sounded up and down Peachtree.