Sounds
The bisbigliando comes from the Italian “whispering” and indicates a rapid exchange among at least two pitches, with alternating hands, often while using enharmonic change. The result is, as the etymology says, a murmuring effect, typical for the harp.
Pierre Boulez, Sur Incises (1996), for three pianos, three harps, and three percussionists © Universal Edition, Wien.
Pierre Boulez, Sur Incises (1996), for three pianos, three harps, and three percussionists © Universal Edition, Wien.
For example, the bisbigliando on the harp has also evolved in the direction of a Klangfarben-Technique (tone-color technique).
Luciano Berio, Sequenza II (1963) © Universal Edition, London.