for gong sounds (207 cm of diameter) electronically elaborated
NB: recommended listening with (good) Headphones
L'Aleph is an acousmatic work, the sounds are fixed on a digital memory and projected in concert.
The piece is realized starting from multiple recordings of a huge gong.
The gong sounds are multiplied, elaborated and mounted at the computer.
The basic idea is to realize an orchestral and polyphonic composition using an instrument that if played live could hardly build a complex texture of sounds.
Sounds are grouped in different families of timbres and transformed to reach all frequency registers. Inside a family, sounds are organized in masses of sound particles from 1 to 10000 per second. The distribution of particles, the density, the superimposition, the overall and single durations, the transposition, the direction of the masses are controlled by the composer. The masses are are treated as orchestral families of instruments to realize a polyphony of musical layers.
In the course of the piece, vocal sounds (whispered or sung) gradually come out. They are realized modifying the gong sounds with 5 filters simulating the resonances of the mouth. The gong seems to whisper or sing as an individual or as a choir.
The sound spatialization is also important, single sounds, masses, impulses or continuous sounds are putted in the space dynamically or statically. They have their own life in space.
The piece is realized entirely in CSound without any further elaborations.
L'Aleph is dedicated to Giorgio Nottoli and the title is taken from the homonymous short story by J. L. Borges.