How does Brian Petro give a new meaning to the old adage “one person’s trash is another person’s treasure.”

Petro, a dedicated artist, was always on the lookout for items he could incorporate into his next work of art. He searched through dumpsters and even abandoned buildings, to find objects that had been forgotten and disregarded.

answer; i believe that the correct answer is ; ///new concepts of melody,harmony,and rhythm;