指孔泛音笛经常只有一、二个孔,利用开放基音弥补音与音的间隙。图2中的b(具有2个开放基音)和c(3个开放基音)就是这种结构,尤其是c在美拉尼西亚和南非很普遍,它在美拉尼西亚使用V字形凹口(图5)。那种泛音笛通常横吹,下端封口,仍然使用堵塞泛音;双手通常并用,即使只有一个侧孔亦同样如此。 Often referred to the hole sound flute only one or two holes, the use of open pitch to make up for the gap between sound and sound. This is the case with b (with 2 open pitches) and c (3 open pitches) in Figure 2, and especially c is common in Melanesia and South Africa, which uses V-shaped notches in Melanesia Figure 5). That kind of flute is usually blown, sealed at the bottom and still clogged with overtones; hands are often used together, even with only one side hole.