Every Thursday we get together at Pane e Vino, a local Bar/Restaurant in Cobble Hill for a night of Argentine Tango. There is live tango music by the trio Importango (Machiko Ozawa, violin; Octavio Brunetti, piano; Adam Tully, guitar).  Regulars hang out at the Bar and Lounge, and couples and small groups have dinner or just a glass of wine. It's not a milonga (dance event) but dancers come by every week to enjoy the atmosphere and listen to the music they love. Inevitably one or two couples get …