What does the tiber trembled underneath her banks to hear the replication of your sounds means?

The phrase "the Tiber trembled underneath her banks to hear the replication of your sounds" suggests that the Tiber River, a significant symbol of Rome, was so moved by the sounds being produced—likely music, speech, or a powerful event—that it caused a physical reaction. This imagery conveys the idea that the emotions or energy being expressed were so profound that even the natural world responded to it. It emphasizes the deep connection between human expression and the environment, highlighting the impact of art or communication on the surrounding world.