Palermo Audio Guide
Check out http://www.bue.gov.ar/audioguia/?info=audios&idrecorrido=37 for 12 Palermo audio guides. You can choose Portuguese, Spanish or English for listening. This is the selection: Tango in Palermo, Plaza Italia, Jorge Luis Borges, Mythical Block, Buenos Aires according to Borges, El Preferido de Palermo, An "arrabal" neighborhood (city slum), A neighborhood of one-story houses, House of Julio Cortazar, Design in Palermo, Julio Cortazar Square, Palermo Hollywood, gastronomic route, and “Mercado de las Pulgas” Flea Market. Enjoy it!