Core Viewpoint - The Beijing Tiantan Qinzhisheng Folk Music Troupe, formed by music enthusiasts, has been performing in Tiantan Park for 16 years, showcasing the charm of traditional Chinese music and attracting a diverse audience [2][5]. Group 1: Background and Formation - The troupe was established in 2009, initially featuring only erhu, yangqin, and dizi, and has since grown to include a variety of instruments and musicians, including retired professionals [2]. - The average age of the troupe members is over 60, and they perform every Saturday afternoon as a public service [2]. Group 2: Performance and Audience Engagement - The recent performance featured over 30 classic pieces, lasting more than three hours, and drew a wide range of audience members, including children and elderly individuals [5]. - The musicians emphasize the importance of their connection with the audience and their shared love for folk music, which drives their commitment to the performances [3][4]. Group 3: Musical Composition and Execution - The troupe's performance included a variety of traditional instruments, and the musicians coordinated seamlessly without a conductor, demonstrating their deep understanding of the music [1][5]. - The ensemble's repertoire included well-known pieces that resonate with historical themes, enhancing the audience's experience [1].