Bring in summer a little bit early at the Bell House on Friday night. Real Estate’s music is just the sort of thing you want soundtracking lazy summer picnics (even the organizers of Celebrate Brooklyn agree); the indie band with NJ roots broke big with their self-titled album in 2009 and have been staples in the local music scene since. The openers, all fellow Jersey natives, include Julian Lynch, who performs globally-influenced psychedelia; indie guitar rockers Big Troubles; and the pop/rock group Family Portrait.