二胡这一民族乐器在长期的艺术实践中深受广大工农兵群众的喜爱。它具有较丰富的表现力,在独奏、合奏中,或者歌午、戏曲、说唱等音乐伴奏中都起着重要的作用。但是这一乐器还存在音域窄、音量小,不能演奏和弦等问题。为了克服所存在的弱点,在不损害乐器传统的演奏法、传统音色和演奏风格的前提下,我们把它改革试制成一种既具备中胡的低音音色,又保持了 d~1以上各 Erhu, the national musical instrument in the long-term artistic practice by the masses of workers, peasants and soldiers loved by the masses. It has more expressive power and plays an important role in solo, ensemble, or musical accompaniment such as song noon, opera, rap and so on. However, this instrument also has a narrow range, small volume, can not play chords and other issues. In order to overcome the existing weaknesses, without prejudice to the traditional performance of musical instruments, traditional timbre and playing style under the premise of the pilot we try to reform and development of both a bass sound, while maintaining d ~ 1 above