This book constitutes the refereed proceedings of the 12th Conference, CSMT 2025, held in Hohhot, China, on November 7–9, 2025.

The 17 full papers presented in this volume were carefully selected and reviewed from 68 submissions. They are classified into the following topical sections: Audio Processing and Music Generation Technologies; Acoustics and Sound Source Localization Technologies; and Research on the Integration of Music Technology and Culture.