Cosmos-lovers symphonic guide to galaxy.

Everybody knows that there are several topics in common between the fundamentals of astronomy and classical music, but how deeply can we search for intimate connections? Are they useful to improve our understanding of physics? Do they provide useful hints for people interested both in music and research? We present in this contribution a new possible approach to the valuable binomial of music and astronomy. Diversely from the past, we propose to search for analogies not in acoustic or melody features, but rather in the formal arrangement of the component itself. We applied this recipe to the case of topics related to the structure of the Universe, in analogy to symphonies by Rebel, Rameau, and Ligeti. The connections between music and physics are discussed by the relator and the orchestra director. Afterward, the opera was played by the Symphonic Orchestra of Milan. Images, animations, and videos were projected in the concert hall both during explanations and the performance, in a very immersive experience for the public. This initiative came after "Beethoven and Black holes" and the concert "Dark Matter, a symphonic mystery" realized with INFN-Laboratori Nazionali del Gran Sasso.