Ana Meza, 16, plays a violin made of recycled materials as she attends a practice session with “The Orchestra of Instruments Recycled From Cateura” in Cateura, a vast landfill outside Paraguay’s capital of Asuncion, Paraguay. After years of practice, the youngsters of “The Orchestra of Instruments Recycled From Cateura” have begun to perform internationally, with sponsors paying their way to places like Brazil, Panama and Colombia.