Formerly the ringmaster of the Chicago Underground Duo/Trio/Quartet, trumpet virtuoso Rob Mazurek is back with another new project, the São Paulo Underground. Why the name change? Well, these days Mazurek resides in Brazil and he's been working on a new jazz combo there with local musicians Maurício Takara (drums) and Guilherme Granado (vocals, samples). In town this past weekend as a part of the MCA's Tropicália exhibition, the São Paulo Underground will also be performing tomorrow night for a special "Empty Bottle presents" live show at Sonotheque. Doors open at 10, admission is $10, must be 21+ to enter. Takara and Granado will open with DJ sets.