Par MANTYSAARI LAURI. Lauri Mäntysaari's solo accordion work Élégie (2020-2021) was forming into a serene, melancholic passacaglia, when the devastating news shocked the world: the iconic church of Notre-Dame was on fire. The composer decided to reform the plan for his work, going through purgatory towards a distant reminiscence of the earliest example of European musical polyhphony, first hear in…