《乐器》1983年第4期所刊“二胡空弦推拉弓音高差异问题浅析”一文,从力学原理上阐述了“弓序音差”产生的原因。笔者据长时期的演奏实践与经验,认为有必要对此文作一些补充。众所周知,二胡空弦推拉弓音高不同的情况,在演奏实践中并非普遍存在。优质二胡发音敏感纯正,不会有也不应该发生弓序音差。低档二胡也不是每把琴都会发生推拉弓音高不同的情况。但有的二胡确是存在十分严重的弓序音差,用“小单方”补救也无济于事。“浅析”的作者论及弓序压力差是二胡本身结构所致,那么为什么在某些乐器上较明 “Instrument” in 1983 the fourth issue of “erhu empty bow bow pitch analysis of differences” one article, from the mechanics to explain the “bow sequence pitch difference” causes. According to a long period of practice and experience, I think it is necessary to make some supplements to this article. As we all know, the ebony hollow bow bow pitch is different, in the practice of playing is not ubiquitous. High-quality erhu sounds sensitive pure, there will be no difference should not occur bow sequence. Low-grade erhu is not the case of each piano will push and pull bow pitch different situations. However, some erhu indeed there is a very serious bow sequence pitch difference, with “small unilateral” remedy is of no avail. “Analysis” of the author on the bow pressure difference is caused by the structure of erhu itself, then why in some musical instruments more