O'Hara's Jazz Café is the most reliable live music venue on Las Olas Boulevard — a long-running club that books live jazz seven nights a week, which in a city of sporadic live music schedules is a meaningful commitment. The room is dark, the bar is well stocked, and the music tends toward the mainstream jazz repertoire: standards, bebop, Latin jazz, with occasional forays into soul and R&B. The musicians are professional and the sets start on time.
The clientele is older and more settled than the A1A beach bars, which suits the music. O'Hara's has outdoor seating on Las Olas and an interior that fills up on weekends, so arrive early if you want a good table near the stage. It is also a reasonable place to eat — the kitchen does American bistro food that is reliably decent — but most people come for the music and treat the food as secondary. No cover on some weeknights; a modest charge on weekends. Check the calendar before you go, as the booking occasionally changes.