Tomorrow’s free 4 p.m. talk will be with MoMA’s Diana Bush on art created during and after the Mexican Revolution of 1910-1917. Bush will cover the works of Diego Rivera, Frida Kahlo and others. And next Saturday, Jan. 30, also at 4, Bush’ll be back (as will the free ticket opportunity) for the multimedia work of Gabriel Orozco. If the talks whet your appetite for a trek to the museum, the pass will soften the blow of the subway fare. Info here.