Circle H if the sound produced is harmon.ious and N if noise HN1. People staging protest rally HN 2. A worker using a jackhammer HN 3. A girl playing the piano HN 4. A traffic jam HN 5. People in a market HN 6. A river flowing HN 7. A bird chirping HN8 A musical box playing music HN 9. A girl playing a tambourine HN 10. A disco place with blaring music
