Notorious is a small bar with a really relaxed atmosphere. It hosts regular live music, and also allows you to pick out a CD, listen to it, and then buy it if you want. You can just have a drink or enjoy a full meal, depending on the time of year.
Callao 966, Buenos Aires City
Open Monday-Thursday 10:00-00:00, Friday 10:00-01:30, Saturday 17:00-01:30, Sunday 17:00-00:30.