Theorem of Joy
Theorem of Joy
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Theorem of Joy
Theorem of Joy

Led by their leader, the double bassist Thomas Julienne, Theorem of Joy is pioneering new paths at the forefront of 21st-century French music. These five musicians, heirs to European musical culture and its fusion, cast their gaze toward a future horizon.

Theorem of Joy presents a captivating, diverse jazz genre that combines North African melodies, post-rock adventures, and the delightful essence of pop. The music, which is enigmatic, lavish, and captivating, delves into unexplored and subconscious territories, flows through rivers, and transports us between introspection and the limitless.

Are we truly disoriented? All that is needed is to be carried away by the stream of sensations and musical eruptions. Theorem of Joy reveals new perspectives composed of visuals, language, and infinite possibilities. Everything connects, diverges, and nurtures the creativity ignited by the band’s music.

Thomas Julienne’s compositions offer a musical vision enriched with various aesthetics. They evoke stories and creatures in a realm where everything embodies harmony and poetry.

Theorem of Joy


Theorem of Joy
Theorem of Joy - l'hiver

L'Hiver - Theorem of joy 

“Very beautiful second album by Theorem of Joy.”

“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

Debut album - Theorem of joy

“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

album Theorem of Joy
Theorem of Joy

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Theorem of Joy