J-Pop in B♭ major

J-Pop in B♭ major: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Compose a J-pop instrumental in Bb major, 148 BPM allegro, 4/4, about 88 bars and about three and a half minutes, scored for bright piano, clean guitar, bass, strings and drums in 5 voices. Texture: driving…