秦腔的主奏乐器板胡,伴奏乐器二胡、高音三弦,自三十年代以来相继成为秦腔剧种的主要乐器,组合在一起,音响效果具有鲜明的地方戏曲特色。秦腔多年以来,男、女演员用同腔同调演唱,多采用一剧一调。常用调有F、F、G、A,板胡也以演奏这四种调效果比较好。但是,随着戏曲的发展,调和音域使用范围的扩大以及声唱科学性的要求,露暴出板胡的性能与客观要求不相适应。例如:一把新板胡需经 Shaanxi Opera’s main instrument Banhu, accompaniment instrument Erhu, treble Sanxian, since the 1930s have become the main instruments Qin Opera, combined together, the sound effect has a distinct local opera features. For many years, Shaanxi and Shaanxi, male and female actress concert with the same cavity, and more use of a play a tune. Commonly used tune F, F, G, A, Banhu also play these four kinds of tuning effect is better. However, with the development of drama, the expansion of the scope of reconciliation range and the requirement of sound science, the performance of raging out of tune with the objective requirements does not fit. For example: a new board to go by