i wanted to broaden their horizons with music. >> a keen musician, favio chavez began sharing his enthusiasm for music with local children and their families. many here live from the little they can earn collecting and recycling waste. chavez has been teaching 14-year-old adner chena to play guitar for four years. >> the people here always welcome me with a smile as though i were bringing them the best gift in the world. all i'm bringing is music, but that's enough for them. >> adner has learnt to play traditional folk songs on a guitar made of tin cans. >> i'd like to be like favio when i grow up. that's my dream. he helps people like us and he's always in a good mood. >> favio chavez brought the sound of music to this rundown neighborhood. and with it, hope. a music school affiliated to the orchestra is nearby. william lopez builds instruments out of recycled materials. >> these days i know the secret of good sound. this baking tray, for example, sounds better if the food cooked on it was burnt. >> he's skilled at turning trash into musical treasures. old tin cans, spoons and forks he can