Untapped went on a Père Lachaise adventure, beginning at the Philippe Starck-designed hotel and bar, Mama Shelter in the 20th arrondisement, situated across from music venue La Fleche D'or. It has some of the best cocktails in town and with rooms running at around 110 euros per night, it's my top recommendation for hotels in Paris.
I love this music venue--it's small which means you can get really close to the bands, there's always a great lineup of bands from all-over the world, it's perched atop an old railroad track and it's in a hip area of town in the 20th arrondisement, next to Père Lachaise.
I recently needed to rent a cello to play with the Brooklyn-based band, Laura Stevenson and the Cans on their European tour. Music stores tend to cluster together in cities. A Googlemap search of "luthier" in Paris shows just how many there are, completely overlapping on the map.