It’s about architecture

One theory: The great German writer Goethe saw the Strasbourg Cathedral in France and praised "architecture is solidified music". The second half is another Philosophers say that music is flowing architecture. As it spreads, it becomes that architecture is solidified music and music is flowing architecture. "Architecture is solid music" (philosopher Schelling 1755-1854), "Music is flowing architecture" (musicologist Haupdmann 1792-1868).

Another saying: The German philosopher Hegel once said: "Music is flowing architecture, and architecture is solid music."