(NORTH ADAMS, Mass.) – MCLA Presents!, a performance series of Massachusetts College of Liberal Arts (MCLA), will kick off its 2012-13 season on Saturday, September 15, 2012, at 3 p.m. in the MCLA Quad with Cuban percussionist Pedrito Martinez and his Afro-Cuban/Afro-Beat Band. Deeply rooted in Afro-Cuban Rumba tradition, Martinez and his ensemble will bring…