NEPTUNIAN MAXIMALISM, aka NNMM and its multiple 'Arkestra” formulas, was initiated by multi-instrumentalist Guillaume Cazalet on guitar/bass and vocals with veteran saxophonist Jean Jacques Duerinckx in Brussels in 2018. The new triple album: Le Sacre Du Soleil Invaincu (LSDSI), produced with the support of the FWB and Le Botanique, mastered by James Plotkin, premiered at Roadburn 2024 and was released on April 11th, 2025 (I, Voidhanger Records).