Two generations gather in this surprising project: from one side a young Swazi born trumpeter who is committed to bring Africa to the Portuguese free music scene, Yaw Tembe, and from the other a veteran percussionist / objects manipulator, Monsieur Trinité (Francisco Trindade), a former emigrant in Paris who brought home the Situationist concepts he discovered in France.

Nothing on their respective careers prepared us for the music of the duo Sirius, which we can describe as a psychedelic kind of improvised music.