Newbury: Mason Martinello, 8, demonstrates a guitar he made of various pieces of cardboard and rubber bands. Third-graders at Newbury Elementary School are celebrating Earth Day and with their study of sound, some students of have taken a cue from Landfill Harmonic, the documentary being created in Paraguay, and have created instruments out of recycled materials as the people have done at the landfill in that country. Bryan Eaton/Staff Photo

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