[Na]: A chemical element of enthusiastic disobedience. This is what we find in Monk's hole-ridden piano strokes or the Afro-Dutch distortion of The Ex and Getatchew Mekurya. The Chicago School, with a libertarian and solidarity tendency, from the Art Ensemble to Jaimie Branch, has written treatises on it. The new trio of Selma Namata Doyen (drums), Rémi Psaume (alto and baritone saxophones, effects), and Raphaël Szöllösy (baritone guitar) experiences it and derives a few formulas from it.