From Generation to Attribution: Music AI Agent Architectures for the Post-Streaming Era. - Wonil Kim; Hyeongseok Wi; Seungsoon Park; Taejun Kim; Sangeun Keum; Keunhyoung Kim; Taewan Kim; Jongmin Jung; Taehyoung Kim; Gaetan Guerrero; Mael Le Goff; Julie Po; et al. (CoRR, 2025)