Mình có một cuộc khảo sát nho nhỏ mong các bạn trả lời hưởng ứng: Age: .................. 1. Do you like music? Yes  No  2. What kind of music do you like best? ……………………………. 3. Do you know folk music? Yes  No  4. If you say Yes in Q3, can you list some kind of folk music? ……………………………………………………………………………………… 5. Do you know Quan Ho singing? If you know, do you like it? No  Yes/Yes  Yes/No  If you say No in Q1, you don’t have to answer other questions.