I recently had tapas and a cocktail at a piano bar in Nice, as I enjoy trying out new places. 
Being a Friday evening, the jazz band began tuning up and started their first (early) set to add music to the lovely ambiance of the place. My only complaint is the champagne was served in a tulip glass that seemed small (or maybe I just wanted more!) but the cocktails were generous servings, as well as the food.
All in all, Le Kosma is a very nice, cozy place to relax, enjoy a cocktail and tapas while listening to some great music. La vie est belle!
24/7 in FRANCE 