Core Insights - The 2025 Huawei Developer Conference (HDC) aims to accelerate digital transformation and intelligent upgrades across various industries, with QQ Music showcasing its collaboration with the HarmonyOS ecosystem [1] Group 1: Technological Innovations - QQ Music introduced real-time vocal separation technology on mobile devices, allowing users to separate vocals from songs in its extensive library with a simple button press [3][5] - The new HarmonyOS 2.0 version of QQ Music includes features like immersive listening experiences, personalized music profiles, and customizable ringtones, addressing user pain points [7][10] Group 2: User Experience Enhancements - QQ Music optimized its app for HarmonyOS and foldable devices, enabling seamless operation between external and internal screens, enhancing user interaction [5][10] - The integration of the voice assistant "Xiao Yi" allows users to control music playback hands-free, improving the overall user experience [7][10] Group 3: Strategic Collaboration - The partnership between QQ Music and HarmonyOS represents a significant technological leap, focusing on the deep integration of operating system capabilities with music services [10] - QQ Music aims to enhance user satisfaction and establish itself as a leading music application within the HarmonyOS ecosystem through continuous innovation and collaboration [10]