With one exception, this disc is a recording of a concert given at the Ateliers Claus in Brussels in March 2024. It was preceded by three short hours of improvisation the day before and the day before that, during which ErikM and I made a series of careful observations of each other's playing. It must be said that neither of us had skimped on transporting a few cases, the contents of which would have allowed us to play several concerts in a row without ever repeating ourselves. Erik had brought his turntables to Brussels, as well as sophisticated electronic machines, accompanied by a virtually infinite sound bank. For my part, I had both a mechanical orchestra and a range of acoustic instruments at my disposal. In two sessions, we eliminated the superfluous and the ineffective. On the evening of the concert, it was through close observation-of each sound, each direction taken by one or the other, each intention, each break-that we composed this record in the moment: vigilant and scrutinising, like the pairs of eyes on the cover of this album.