Well, what is Acousmatic music, one of you may ask.....
This is music made in a studio, using all kinds of devices possible, from pieces of metal, wood, paper, whatever speaking through the use of the microphone, to synth or software electronics sequences, not forgetting the voice, noises & sounds of real life, etc...
All this material is shaped, cutted, processed to fit in the form of a story made with sounds that are not basically considered as being musical (but since pionners like John Cage at the end of the 30's, we all know that everything can be music).
Acousmatic means that you cannot see (and even cannot guess) the physical origin of the sound. That means that once you had putted out this useless information, you can start to really feel and hear the sounds for themselves, as they really are, with their inner life ans shapes....
In other words, the acousmatic situation is really freeing the listener, who can so start to make work is imagination, who can investigate by himself the music to make it alive, and not being just a passive worm eating everythings that one want him to eat...
In concert, the music is meant to be heard on a loudspeaker orchestra, called Acousmonium, where the public is surrounded by speakers, and can be directly and totally in the sound.
The history of this music goes back to the pionneers Pierre Scheaffer and Pierre Henry at the end of the 40's....