From the late 1990s until today, China's sound practice has been developing in an increasingly globalized socio-political-aesthetic milieu, receiving attentions and investments from the art world, music industry and cultural institutes, with nevertheless, its unique acoustic philosophy remaining silent. This book traces the history of sound practice from contemporary Chinese visual art back in the 1980s, to electronic music, which was introduced as a target of critique in the 1950s, to electronic instrument building fever in the late 1970s and early 1980s, and to the origins of both academic and nonacademic electronic and experimental music activities. This expansive tracing of sound in the arts resonates with another goal of this book, to understand sound and its artistic practice through notions informed by Chinese qi-cosmology and qi-philosophy, including notions of resonance, shanshui (mountains-waters), huanghu (elusiveness and evasiveness), and distributed monumentality and anti-monumentality. By turning back to deep history to learn about the meaning and function of sound and listening in ancient China, the book offers a refreshing understanding of the British sinologist Joseph Needham's statement that "Chinese acoustics is acoustics of qi." and expands existing conceptualization of sound art and contemporary music at large. Half Sound, Half Philosophy contributes a uniquely ambitious and essential entry into the emerging literature on sound in East Asia. Wang's rich scholarly analysis extends the core tenets of qi as acoustical thought into a contemporary history of electronic music and sound artists, revealing the deep roots of sonic philosophy in Chinese conceptual and creative practices.