Classical sonatina in B♭ major

Classical sonatina in B♭ major: a task in MiMo-V2.6-RL-harbor-music: MiMo-V2.6-RL Music (Harbor) (Harbor dataset). Compose a classical sonatina in Bb major, 114 BPM moderato, 4/4, about 88 bars and about three and a half minutes, scored for solo piano in 2 voices. Texture: Alberti bass under a…