ABSTRACT
Bambuso Sonoro was designed and built by Hans van Koolwijk. The instrument arose from a need to enable a single player to play more than one bamboo flute at a time. It is an unpolished instrument in which the visual element is intimately linked to the auditory. The main differences between this instrument and a pipe organ is that it works with variable wind pressure, thus maintaining many of the capabilities of mouth-blown flutes. The unruly and at times unpredictable nature of the Bambuso is a product of its chance subsidiary sounds, the various sound qualities, divergent harmonics, glissandos, interference of tones, rhythmic patterns, and so forth. The conglomeration of these qualities makes this instrument especially well suited for the playing of unconventionally notated scores where the expression of a particular sphere is more important than the reproduction of exact pitches.
