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New album out now: “Feux”
18 September 2025
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Led by its founder, double bassist Thomas Julienne, Theorem of Joy forges new musical pathways for the 21st century. Drawing on a rich European heritage and a deep culture of cross-pollination, these five musicians cast their gaze towards a future horizon.
Theorem of Joy offers a vibrant, hybrid soundscape in which jazz intertwines with North African inflections, post-rock flights and the subtle warmth of neo-classical textures. Mysterious, expansive and intoxicating, the music ventures into uncharted territories, flowing upstream through the rivers of our unconscious and carrying us back and forth between introspection and the infinitely vast. Yet we are never lost. All that is required is to surrender to the current of sensations and sonic flashes. Theorem of Joy unfolds ever-shifting horizons, composed of images, words and infinite possibilities. Everything connects, drifts apart and recombines, feeding a cinematic imagination that awakens stories and presences within a profoundly poetic world.
“Thomas Julienne confirms his place among the most singular composers of his generation. Tireless and constantly in search of new forms, he does not compose albums: he creates worlds.”
— On Feux, Best Jazz Album 2025, Paris Move
“Very beautiful second album by Theorem of Joy.”
Alex Dutilh – FRANCE MUSIQUE
“An album rich in an ambitious orchestral dimension, whose shimmering arrangements, imbued with a chiaroscuro fairyland, give this beautiful cast the opportunity to express all these qualities.”
Yazid Kouloughli – JAZZ MAGAZINE
“Devilishly clever and playing with codes too. A music which does not try to please at all costs but which seduces all the same because precisely, it is brilliant but not flashy. The album “L’Hiver” is warm like the end of spring. Here again. which will panic the clocks. And the compasses. Which is not without joy.”
Frampi Sunship – Record awarded CITIZEN JAZZ
“We are then deeply entering a world of chiaroscuro, in a sort of primitive forest of great beauty. But also one can feel, right away, the extreme amount of work which has probably taken hold of all the musicians that are part of the project. “Sophistication” and “originality” are joining forces to obtain a fascinating music in each and every moment.”
Note de Jazz / Michel Arcens
“Theorem of Joy offers you a jazz whose colors are simultaneously vibrant, oriental and classical at the same time; with pop-rock reflections and a discrete yet fatal charm of those masters who know how to disappear behind their artwork. Essential, simply “essential …”!”
Paris Move Thierry Ilene
“A very unique album, thoroughly elaborated, which navigates between the best of the progressive rock, jazz and a (very) sophisticated kind of pop music. The instrumental ensemble formed by the guests do justice to a dense and beautiful writing, influenced by the beginning of the 20th century, and which is not taking the easy way out of the genre. The lyricism of the writing is indisputable, mastered but not constrained. In all it’s a success, an ambitious project which fully reached its potential.”
DNJ / Xavier Prévost
