Nick Sinclair has done a lot for Northfield.  His edgy art has become a visual theme that has helped illustrate an important, emerging piece of our community in recent years; his business start-ups have revealed the existence of an entrepreneurial energy in the Northfield that gets more acclaim in cities like Minneapolis, San Francisco, Boston, and Seattle.  And then there’s his annual festival of art, hot rods, and music …Lowbrow High Octane.  Quit whining about all the hot rods in the public parking spaces for one night and raise what we used to call a Pabst Blue Ribbon (before it moved from Milwaukee to L. A.) to Nick Sinclair and the final chapter of Lowbrow High Octane, this Friday night.

Friday, September 20th: Lowbrow, High Octane 8, 5:00 p.m. to 12:00 a.m., Downtown Northfield; Mark Grim, 7:00 to 9:00 p.m., HideAway Coffeehouse and Wine Bar; and Craig Wasner & Maren Brogger, 8:00 p.m., Tavern Lounge.

Saturday, September 21st: Riverwalk Market Fair, 9:00 a.m. to 1:00 p.m., Bridge Square; Nordic Fiddle Workshop, 2:00 to 4:00 p.m., Contented Cow; 11th Annual Northfield Day of Peace, 2:00 to 4:00 p.m., Bridge Square, The Bratlanders, 7:00 p.m., Contented Cow; and Andra Suchy & Andrew Pierzina, 8:00 p.m., Tavern Lounge.

Sunday, September 22nd: Recital: Ashley Hall, 2:00 p.m., Christiansen Hall of Music on the St. Olaf College campus; Bicycle-Friendly Downtown Design Throw-Down, 6:00 p.m., Contented Cow; and Quiz Night, 8:00 p.m., Contented Cow.