管(guan)(guan)(guan)身竹(zhu)制(zhi),多采用一段無節小竹(zhu)管(guan)(guan)(guan)制(zhi)成。管(guan)(guan)(guan)長38厘米(mi)、外(wai)徑(jing)1.8厘米(mi)、內徑(jing)1.3 厘米(mi) 。在(zai)距(ju)管(guan)(guan)(guan)首(shou)(左端)6厘米(mi)處,開有(you)一個吹孔(kong)(kong) ,笛塞置于這(zhe)段管(guan)(guan)(guan)身內腔中,距(ju)吹 孔(kong)(kong)0.5厘米(mi)。在(zai)管(guan)(guan)(guan)身中下(xia)部,開有(you)六個按(an)音孔(kong)(kong),第(di)一孔(kong)(kong)距(ju)管(guan)(guan)(guan)尾(右端)5 .5厘米(mi),第(di)六孔(kong)(kong)距(ju)管(guan)(guan)(guan)尾18厘米(mi),各(ge)按(an)音孔(kong)(kong)距(ju)離均等。不設膜(mo)孔(kong)(kong)。
演奏時(shi),管身(shen)橫置(zhi),奏法與漢(han)族竹笛(di)相(xiang)同。右手(shou)無(wu)名指(zhi)、中(zhong)(zhong)指(zhi)、食(shi)指(zhi)分別按(an)第(di)(di)一、二(er)、三孔 ,左手(shou)無(wu)名指(zhi)、中(zhong)(zhong)指(zhi)、食(shi)指(zhi)分別按(an)第(di)(di)四、五、六孔。這種筒音(yin)(yin)為g?1的C調壯笛(di),通過平(ping)吹(chui) 和超吹(chui),音(yin)(yin)域(yu)g1—g3,有(you)兩個八度。平(ping)吹(chui)音(yin)(yin)色(se)柔(rou)和、稍悶,超吹(chui)音(yin)(yin)色(se)明亮、華(hua)麗(li)。e3 以上(shang)的音(yin)(yin)比較刺耳,很少使(shi)用(yong)。壯笛(di)常用(yong)于獨(du)奏、器(qi)(qi)樂合奏或壯劇伴(ban)奏,是壯族八音(yin)(yin)樂隊(dui)中(zhong)(zhong) 的重要樂器(qi)(qi)之一,它和馬骨(gu)胡同為主奏樂器(qi)(qi),每支八音(yin)(yin)樂隊(dui)中(zhong)(zhong)要有(you)兩個壯笛(di)席位。在壯劇樂 隊(dui)中(zhong)(zhong),壯笛(di)也(ye)常擔任領奏。