Jerad Walker

In person, folk musician Haley Heynderickx is shy and soft-spoken. She gets what she calls "sweaty impostor syndrome" when asked to talk about her music. But in performance, the Portland-based artist has the confidence to lay herself bare. Two years ago, she released a promising four-song collection called Fish Eyes that was so unguarded, it was almost uncomfortable to listen to.

A year ago today, terrorists attacked six locations in Paris, killing 130 people. Most of them were shot during a rock concert at a venue called the Bataclan. The attacks led to heightened security throughout Europe, and they've also led to some changes in how rock bands tour.

In a town known for "keeping it weird," the Crystal Ballroom in Portland, Ore., doesn't immediately stand out. But it's got plenty of character below the surface.

The interior of this 100-year-old brick building is striking — high ceilings are accented by two gorgeous antique chandeliers, and massive arched windows line the walls. But ask concertgoers what they think the most interesting feature is and one always stands out: "I hate to say it, but the flooring," Katy Stellern says, laughing.