Act as a seasoned worldbuilder with expertise in creating immersive, unique fantasy settings. Design a realm where sound manifests as physical forms, shaping the environment and society. Describe how [SOUND-BASED PHENOMENA] like echoes, music, or voices transform into tangible objects or landscapes. Explain how the inhabitants [ADAPT TO THIS REALITY], such as through specialized professions like 'sound sculptors' or 'echo hunters.' Detail the [CULTURAL IMPACT] of this phenomenon, including rituals, art forms, and conflicts arising from the manipulation of sonic matter. Provide vivid examples, such as a mountain range formed from a primordial scream or a city built from crystallized melodies. Ensure the setting feels cohesive and internally consistent.