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(接上期)自然跳弓的演奏方法与练习自然跳弓是一种高难的演奏技法,完成它的演奏需具备多项物质和技术条件,如果没有理想的弓子和全面过硬的基本功(尤其是快弓基础)是无法演奏好自然跳弓的。一演奏自然跳弓的必备条件1.选弓标准演奏自然跳弓,首先要选弓得当(戏曲伴奏板胡弓子除外),目前板胡使用的弓子长度一般是86厘米、弓杆直径1厘米,弓毛数量350～400根(如弓毛少于200根,就增加演奏内弦的难度),弓尖弯度(弓毛和弓杆之间的距离)1.5厘米,小于1.5厘米弯度的弓子,将直接影响弓子的弹性和起跳。弓尖弯度越小,弹性也越小,不易起跳,弓尖弯度过大,弹性也过大而不易控制。如图3所示:
(Continued) Performance and Practice of Natural Jumping Bow The natural jumping of a bow is a difficult technique to perform. It requires a variety of material and technical conditions to complete its performance. If there is no ideal bow and comprehensive skills (especially fast Bow Foundation) is unable to play a natural jump bow. A natural bow to play the necessary conditions 1. Select the standard bow bow to play natural, first of all to choose the bow properly (opera accompaniment Banhu bow), the bow is currently used Banhu length is generally 86 cm, bow diameter of 1 cm, Bow number of 350 to 400 (such as less than 200 bow hair, to increase the difficulty of playing the string), bow curvature (Bow hair and bow between the distance) 1.5 cm, less than 1.5 cm camber bow, will A direct impact on the elastic bow and take off. Bow curvature smaller, less flexible, difficult to take off, bow curvature too large, too flexible and not easy to control. As shown in Figure 3: