As a rational framework for pitch systems and timbral aesthetics, traditional Chinese lüxue (pitch theory) embodies profound principles of proportional beauty, pitch philosophy, and sonic thought. In contemporary musical composition, these traditional concepts have been recontextualized within new technological paradigms and aesthetic frameworks, undergoing deep transformation and creative reconstruction. This article explores the evolving trajectories and reconstructive mechanisms of ancient pitch systems and timbre organization logic from three interrelated dimensions: pitch integration and modal reconstruction, the eight-tone (bāyīn) principle and timbral innovation, and the interaction between ancient instruments and modern media. It argues that, against the backdrop of intensified cultural exchange between Chinese and Western music and the shifting global auditory ecology, there is an urgent need to establish a system of notational translation and structural reconfiguration to facilitate the organic transformation of cultural memory into compositional language. The distinctive configurational methods and aesthetic paradigms embedded in Chinese sonic logic may well emerge as original methodological variables and sources of cultural tension within the evolving global grammar of music.