First it was a restaurant in a bank vault. Now it’s a jazz club. What is this world coming to? Decadence, that’s what, and blame The Bedford, which is launching jazz nights on Wednesdays, beginning with various lineups led by drummer Makaya McCraven, whose “explosive drumming style blends world rhythms and jazz traditions with a hip hop and rock attitude.” (Thank heavens Mr. Potter isn’t alive to see that.) The first night is Wednesday, February 20, with two sets between 9 and 11 p.m. each Wednesday night from then on. Swing it, cats!