Core Viewpoint - The event "Sounding Mountains and Rivers: Inheriting Ancient and Modern Techniques" showcases the integration of traditional cultural heritage with ecological aesthetics, emphasizing the importance of intangible cultural heritage (ICH) in contemporary society [1][3]. Group 1: Event Highlights - The event featured performances by national ICH inheritors, including a stunning opening with military sound simulations by three inheritors, creating an immersive experience [3][8]. - Notable performances included the 88-year-old master Niu Yuliang's rendition of "Hundred Birds Chirping," which harmonized with the natural surroundings, and a shadow play by the Beijing Shadow Play Troupe that illustrated natural philosophy [3][6]. - The event aimed to create a living museum experience, integrating various art forms such as calligraphy and shadow puppetry within the scenic landscape [8]. Group 2: Cultural and Economic Impact - The event is part of a broader initiative to explore new pathways for revitalizing ICH through ecological empowerment and cultural tourism, with local techniques like Qing Shui tofu and Ling Shan tea being recognized as part of the district's ICH inventory [9]. - The collaboration between Xicheng and Mentougou districts represents a significant effort to promote ICH through a combined approach of performance arts and ecological integration, enhancing cultural confidence in rural areas [9][8]. - The event concluded with positive audience feedback, highlighting the accessibility and appeal of highbrow art forms to the general public, indicating a successful engagement with local communities [9].