根据音响学原理:每个准确的乐音都有其固定的振动频率,如果每个奏出的音都符合特定的振动频率,那么这些音就是准确的,反之就是不准确的。然而,二胡不是固定音准的乐器,由于定弦的高度及方式的不同,它的所有音高都是相对的。因此,二胡演奏中的音准取决于不同的调式、调性及音程关系的相对音高。二胡是多种律制混合使用的民族拉弦乐器。由于它既无指 According to the principle of acoustics, every accurate musical sound has its fixed frequency of vibration. If each of the played sounds corresponds to a particular vibrational frequency, then these sounds are accurate and vice versa. However, the erhu is not a fixed-pitch instrument, and its pitches are all relative due to the difference in the height and manner of the strings. Therefore, the pitch of erhu performance depends on the different pitch, tonality and the relative pitch of the interval relationship. Erhu is a mixture of multi-disciplinary ethnic stringed instruments. Because it has no finger