The initial idea is inspired by brain functioning as for my other recent pieces, especially my cycle Brains for string quartet. In Intrusions, each instrument is not only a brain, but also a neuron constituting a “large brain”, embodied by the orchestra.
Studies show us that the brain develops with a form of spontaneity, and it does so by feeding on information from the outside. It learns by repeating and imitating this external information. During this learning process, a form of sociability, close to compassion, settles to understand the difference between the self and the other. The brain then seeks to reduce this gap through a game between predictions and achievements.
The piece develops with this analogy and particularly in this relationship with “others”. This questions in a more global way the link of man with his environment or with society. Also, sounds of different living beings, produced by electronics, will be put in tension with the instruments of the orchestra and with other sounds of our daily life. The learning mechanisms take place in both directions: from the orchestra to the electronics and from the electronics to the orchestra. These different imitation relationships constitute a device close to a sound ecosystem in constant evolution.

(Misato Mochizuki)