Freret Street finally gets its horns this fall. The Box Office at La Nuit will host brass bands and traditional New Orleans jazz and blues starting September 5. The show, which will be held from 5 until 8 p.m., will start after vendors at the Freret Market fold up their tables and tents.

That Saturday will herald a new era of music on a street not known for its nightlife. Yvonne Landry, owner of the Box Office, has pushed to get live music on the street since City Council loosened zoning r...