Similar to stage one,volunteers were divided into two groups.As for the part of instrument experience,questions for both groups were identical.Questions about academic performance for group one were mainly focused on liberal arts while those for the other group were concentrated on science and engineering.As the questionnaires in stage one had only showed differences in statistics,we would find more subtle distinctions between two groups.The subjective feelings of the interviewees may imply the causes of those differences between students majoring in liberal arts and those learning science and engineering. 4Re5ut(4.14.2付尚扬4.3徐瑾卿) 4.1 Musical instruments help students of liberal arts achieve better academic performance 尚扬) Students who major in liberal arts 12 白 06 20%30%40%50%60%70%80%90% grade ranking Fig.1 Grade ranking of students who major in liberal arts Among the 83 effective questionnaires,35 were done by the students of liberal arts.Their grade ranking was shown in Fig.1.Most of the students ranked at 50%and obviously,those who ranked higher were more than those who ranked lower in number.To be precse,the mean was calculated as 42.3%which meant that for students of liberal art who played musical instruments, their academic performance was higher than the others by 7.3%on average.From the result,we could see a 7.3%boost in academicperformance among students of liberal arts. 4.2 Musical instruments have slight influence on students of science and engineering 9/149 / 14 Similar to stage one, volunteers were divided into two groups. As for the part of instrument experience, questions for both groups were identical. Questions about academic performance for group one were mainly focused on liberal arts while those for the other group were concentrated on science and engineering. As the questionnaires in stage one had only showed differences in statistics, we would find more subtle distinctions between two groups. The subjective feelings of the interviewees may imply the causes of those differences between students majoring in liberal arts and those learning scienceand engineering. 4 Result(4.1 4.2 付尚扬 4.3徐瑾卿) 4.1 Musical instruments help students of liberal arts achieve better academic performance（付 尚扬） Among the 83 effective questionnaires, 35 were done by the students of liberal arts. Their grade ranking was shown in Fig.1. Most of the students ranked at 50% and obviously, those who ranked higher were more than those who ranked lower in number. To be precise, the mean was calculated as 42.3% which meant that forstudents of liberal art who played musical instruments, their academic performance was higher than the others by 7.3% on average. From the result, we could see a7.3% boostin academicperformance among students of liberal arts. 4.2 Musical instruments have slightinfluence onstudents ofscience andengineering